大學經濟

這段改編自 2010 年 4 月 18 日的對話。

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我猜想,當一個人改變存在型態時,會立刻或者將會,知道很多生時不知道的東西。但是,那些新知識,未必包括你想知道的東西。

比喻說,由中學升到大學,你將會學到,很多超過中學程度的知識。但是,如果你中學時,沒有讀過經濟科的話,單單是「升大學」本身,並不會令你,立刻獲得經濟科的知識。

大學生「由零開始學經濟學」,都同樣要花時間;分別是,通常而言,比中學生「由零開始學經濟學」,速度會高一點。

(問:不一定呀。中學生比較年青,腦袋理應高速一點。)

無錯。

方便起見,暫時用同一個人來比較,例如你。

「中學的你」可以因為腦袋較年青,學習新事物比「大學的你」較快。「大學的你」可能因為知識和經驗較多,學習新事物比「中學的你」較快。

視乎情況,因人而異,沒有一定的答案。

但是,至少你會同意一點:

如果你中學時,沒有讀過經濟科,在大學時要「由零開始學經濟學」的話,你會立刻看大學程度的經濟書,而不是由中學教科書開始學。

— Me@2018-06-05 11:54:51 AM

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2018.06.07 Thursday (c) All rights reserved by ACHK

技術細節 3

親歷其境 3

這段改編自 2010 年 4 月 18 日的對話。

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一切文學,余愛以血書者。

— 尼采

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剛才講到,我想去升學那間大學的物理系,其獨特優秀之處。

世界上,只有極少數大學,提供超弦理論的課程。而且,那個碩士課程,不是純修課式。它為期兩年:第一年是上課,第二年是研究。

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對於我現在這個年紀,單純知識的吸收(簡稱「學習」),沒有大意義。對我有大意義的是,研究和製造。

或者說,即使一個人對學術有極大興趣,十分喜歡學習,都不應做「永恆學生」。「永恆學生」在這裡,作負面意思用。「永恆學生」的特徵是,知識多而能力差,簡稱「高分低能」。

留意,所謂「知識多而能力差」,其實就即是,知識流於表面,未詳細到可以應用。例如,即使你對中國象棋中的每一隻,行走的方法,非常熟悉,那並不代表,你「懂」怎樣下棋。

要真正下到棋,你要靠不斷嘗試,長期的實戰。那樣,你才可以獲得下一個層次的知識;令自己對於象棋,知得足夠詳細,詳細到足以有效實行。

有時,知易行難,是因為知得不夠深入;

有時,行而無效,是因為行得不夠徹底。

永久單純地,吸收新知識,而沒有下一個層次的發展,是沒有意義的。或者說,知識上,只有輸入而沒有輸出,是病態。

所謂「下一個層次的發展」,可以是:

1. 應用

隨著越來越多次的應用,你於該個領域的知識,再不是依書直說,而是真才實學。

2. 傳播

如果你要傳播知識,必須靠說話或文章。

無論用兩者的哪一個,你必須透過自己的「語言」。換句話說,你必須為舊知識,創造一個新的包裝;即使,有時,你是不自覺地那樣做,未必意識到自己正在從是創作。

還有,有時,你亦會無意中,有知識上的新發現—在為舊知識創造新包裝時,竟然引發了新知識。

3. 研究

透過舊知識,發掘新知識。

— Me@2018-05-05 10:06:15 AM

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Know the subject—At the Dale Carnegie public speaking class, which I highly recommend—they say anyone can make a good speech if he or she has _earned the right_ to speak on the subject in question. How do you earn the right? By living through the subject or by doing extensive research on it—which is arguably another form of living through it. Same principle applies to how-to writing. You cannot do high school student research. That is, find 21 facts and write an essay that consists solely of those 21 facts. Rather you need the proverbial iceberg of unused facts under the “tip” that is your book. The good news is virtually everyone has lived through something that fits that criterion. And, with a year or so, we can all research something that interest us to the point where we can write about it. The key to bad writing is assigned topics—the standard of high school and college teachers.

— John T. Reed

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2018.05.06 Sunday (c) All rights reserved by ACHK

More College Advice – GPA

I know this has been discussed before here, but I find Joel’s comments about having a high GPA questionable. I’ve never paid much attention to GPA scores when hiring, except to wonder why some candidates with mediocre GPAs in the 3.0 – 3.3 range brag them up. If anything, I’m interested in people who have quirky grades all over the map due to taking strange, challenging, and diverse courses.

It’s hard for me to believe that people in hiring positions really care much about high GPAs, unless they themselves have high GPAs (ignoring HR drone filters). If so, that’s already a minority. Even in this group, though, especially those with very high GPAs, my experience has been that its not really a factor.

At best, it’s a slight positive in the general hiring world, and can actually count against one when seeking employment, as in Bs don’t hire As. I tend toward very high GPAs myself (3.9 in my just completed graduate work, albeit it’s business strategy).

So I’m curious, does anyone here agree with Joel on this to the extent that the GPA counts (or would count) as important if you were hiring someone? Are you a high GPA yourself? I’m curious if there’s a correlation between high GPA and this attitude.

— Mongo

— Monday, January 03, 2005

You know the old saying, “The world is run by C students”[.]

— ted knight

— Monday, January 03, 2005

From my experience from college (and this is just my experience, so don’t flame me), the people with high GPAs were generally hard working and responsible, while the people with low GPAs were either slackers, people that made excuses (“oh, I had sooo much work to do”) or just not good enough to get high grades. I wouldn’t really want to hire most of the people I knew with poor GPAs. Some were very good, but I wouldn’t trust them to do be responsible and do their job even when things got boring.

I got a 3.91 from a top 10 CS program, and that helped tremendously when I was looking for jobs and internships. Companies were contacting me and asking me to apply, I didn’t have to seek them out. A friend of mine who graduated at the same time as me, from the same program, just found a job recently almost two years after graduating. He said a lot of companies wouldn’t even look at him because of his low GPA.

Other friends decided they couldn’t find a good job, so they’re going to grad school. Well, big surprise, they can’t get into a good grad school either with their low GPAs.

So yeah, I think it matters a great deal. One thing I noticed was that the people that had to pay for college themselves and had to work through college (like me) took it more seriously and got better grades, while those whose parents paid for it oftentimes didn’t care too much, took way too long to graduate, etc.

— sloop

— Monday, January 03, 2005

— The Joel on Software Discussion Group (CLOSED)

2016.01.19 Tuesday ACHK

Passion Test

The Top Idea in Your Mind, 6 | 事業愛情觀 6

To check whether a project is your true love, ask yourself:

Am I willing to spend INFINITE time on it?

— Me@2015-07-05 04:26:24 PM

Do you want it to be one of your lifelong projects?

Are you willing to follow it up for your whole life?

— Me@2015-07-12 11:00:11 AM

2015.07.12 Sunday (c) All rights reserved by ACHK

Intelligence and Wisdom

A few days ago I finally figured out something I’ve wondered about for 25 years: the relationship between wisdom and intelligence. Anyone can see they’re not the same by the number of people who are smart, but not very wise. And yet intelligence and wisdom do seem related. How?

What is wisdom? I’d say it’s knowing what to do in a lot of situations. I’m not trying to make a deep point here about the true nature of wisdom, just to figure out how we use the word. A wise person is someone who usually knows the right thing to do.

If wisdom and intelligence are the average and peaks of the same curve, then they converge as the number of points on the curve decreases. If there’s just one point, they’re identical: the average and maximum are the same. But as the number of points increases, wisdom and intelligence diverge. And historically the number of points on the curve seems to have been increasing: our ability is tested in an ever wider range of situations.

The wise are all much alike in their wisdom, but very smart people tend to be smart in distinctive ways.

— Is It Worth Being Wise?

— Paul Graham

2015.07.03 Friday ACHK

天空堤壩

Talent at its best and character at its worst

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Lord Acton said we should judge talent at its best and character at its worst. For example, if you write one great book and ten bad ones, you still count as a great writer — or at least, a better writer than someone who wrote eleven that were merely good. Whereas if you’re a quiet, law-abiding citizen most of the time but occasionally cut someone up and bury them in your backyard, you’re a bad guy.

— Paul Graham

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才能方面,如果一個人的最高點是可以接受的話,你就可以錄用他,即使他有其他任何才能缺點;

品德方面,如果一個人的最低點是不可接受的話,你就千萬不要錄用他,即使他有其他任何品德優點。

— Me@2010.03.06

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才能方面,一個太陽可以照亮整個天空;

品德方面,一條裂縫可以摧毀整個堤壩。

— Me@2010.03.06

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2010.03.07 Sunday (c) All rights reserved by ACHK

大學選工 2

這段改編自 2010 年 8 月 11 日的對話。

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但是,那也只是枝節,比較膚淺,只是順帶一提,不是核心方法。

實在一點的方法是,在大學時代,盡量爭取最多的實習機會,從而認識最多相關行業的同事。那樣,遠在大學畢業之前,就會有一大批相關行業人士,和你共事過,知道你的工作態度和能力。

所以,大學時代,除了學業上有很多工序外,在事業上,同時亦有不少功夫要準備。

留意,由開始尋找,到找到一份心儀的工作,大概需要一年。所以,如果你在大學畢業時,才開始的話,你很可能要,花上一年的時間,處於全失業的狀態,或者立於半失業的境地。

「半失業」的意思是,你要暫時做一些,沒有前途的工作。那不會是你嚮往的經歷,因為,你不會事先知道,那個「暫時」,會「暫到何時」。

— Me@2015.03.29

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2015.03.31 Tuesday (c) All rights reserved by ACHK

Intellectual, 3

There are two kinds of people: intellectuals and non-intellectuals.

Don’t do the opposite kind of work.

Do not judge an intellectual’s life by a non-intellectual standard, or vice versa.

— Me@2011.07.28

2015.03.25 Wednesday (c) All rights reserved by ACHK

大學選工

這段改編自 2010 年 8 月 11 日的對話。

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凡是招聘廣告中的工作,通常也不是理想的工作。

從招聘者的角度看,如果公司有空缺,他盡量想聘請,曾經在合作過的人,因為聘請一個陌生人,或者一位相識,但未曾共事過的人,風險很大。

他第一步,會想到公司內部的人,看看有沒有同事,適合升遷到該職位。沒有的話,便會想一想其他曾經共事過的人,例如以前公司的同事、現在公司的以前同事、現在公司的以前實習生等等。

再不行的話,就會找一些雖未共事過,但有信心保證的人選。而信心保證,主要來自引薦。如果有可靠朋友的介紹,再加上恰當的面試,聘請到不務正業人士的機會,就比較微。

所以,如果那位招聘者,竟然要刊登招聘廣告,通常而言,只因「山窮水盡」,或者「走投無路」。

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作為一個求職者,如果要找到較為理想的工作,就盡量不要依靠招聘廣告。不要只寄「應徵信」,亦要寄「求職信」。只要有心儀的公司,就要主動寄出「求職信」,無論它有沒有刊登招聘廣告。

正正是因為較為理想的工作,通常不會在招聘廣告中出現,你要主動寄出「求職信」,才有可觀的機會,找到潛在的理想工作。

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但是,那也只是枝節,比較膚淺,只是順帶一提,不是核心方法。

— Me@2015.03.24

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2015.03.24 Tuesday (c) All rights reserved by ACHK

大學選科 1.2

這段改編自 2010 年 8 月 11 日的對話。

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(TK: 那樣,band A 之後的哪些科目,又應該怎樣選呢?)

其實,如果你不被你 band A 或 band B 的科目取錄,你就很可能會,跌落選科表格中,排到很後的學科。所以,你選科表格中的任何一科,都有可能變成你的真正主修。

大原則是,凡是你填落該表格的科目,可以沒有愛,但不可以有恨。

即使你最初入讀的學系,不是你最心儀的那一個,其實也沒有大所謂,只要你對它「沒有恨」就可以;因為,只要「沒有恨」,你就仍然有很大機會,在大學一年級時,奪取高分,從而獲准轉系,改變主修科目。

只要「沒有恨、成績好」,就自然有無盡的選擇。莫講話「第二年轉系」,連「第二年轉校」都有可能。

— Me@2015.03.08

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2015.03.09 Monday (c) All rights reserved by ACHK

大學選科

這段改編自 2010 年 8 月 11 日的對話。

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(TK: 那樣,band A (第一組別)的科目,應該都是,自己最喜歡的科目,…)

不完全是。

香港 JUPAS(大學聯合招生)的 band A 有三科。頭兩科就應該是,自己最喜歡的。至於第三科,就應該是「水浮」(救生圈)科目,亦即是一些自己不是最喜歡,但仍算頗為喜歡,可以接受;而收生要求不太高,導致以你的成績,有九成九機會,會獲得取錄的。

(TK: 那樣,band A 之後的哪些科目,又應該怎樣選呢?)

其實,如果你不被你 band A 或 band B 的科目取錄,你就很可能會,跌落選科表格中,排到很後的學科。所以,你選科表格中的任何一科,都有可能變成你的真正主修。

大原則是,凡是你填落該表格的科目,可以沒有愛,但不可以有恨。

— Me@2014.11.11

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2014.11.24 Monday (c) All rights reserved by ACHK

軟硬智力 12

天人天書 1.2.3

這段改編自 2010 年 4 月 10 日的對話。

比喻說,我因為打網球,導致運動量增加,令我身體更加健康,從而頭腦更加清晰,工作更加順利。你並不需要問:「究竟你打網球中的哪個動作技巧,令到你的工作更加順利?」

第一層次,「神作」帶來嶄新的意念。

第二層次,「神作」帶來天人的靈感。

以上兩者皆是 software(軟件)。

第三層次,「神作」中的 software,有時會上乘到,引發我有 hardware 上,即腦部結構的改變。換句話說,「硬件智力」得以提升。

腦部的 hardware(硬件),即是腦部本身,並不完全是「硬」而不可改變的。用腦用得多,或者受到「神作」的衝擊,腦中眾多神經元細胞之間的連繫,會變得密集很多。

— Me@2014.11.14

2014.11.15 Saturday (c) All rights reserved by ACHK

數字人事 1.1

荒島測試 4.1

這段改編自 2010 年 8 月 11 日的對話。

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(TK: 其實,我也不太知道,上大學應該選哪一科作為主修,因為,我暫時沒有,一些心儀的科目。)

至起碼,你要先縮窄範圍,例如,你可以考慮:

你喜歡「對數字」、「對文字」,還是「對人」的工作?

(TK: 可不可以,三樣也不喜歡?)

那樣,對你來說,哪一樣的「不喜歡程度」最低?

記住,要「眾害取其輕」。

(TK: 可以暫時假設是「對人」。)

那樣,你就可以立刻想像到,一大堆科目。例如,「工商管理」和「社會工作學」,都是「對人」的科目。

現在,你就有了一個大概的方向。然後,你才開始詳細考慮,你最喜歡的是哪些主修科目。

— Me@2014.11.11

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2014.11.12 Wednesday (c) All rights reserved by ACHK