Long Traveller

Posted on October 15, 2007 by rpflee

The journey is the destination.

— Me

2007.10.15 Monday (c) CHK2

硬智力

Posted on October 14, 2007 by rpflee

2.1 軟硬智力

一個人的智力是先天已定, 還是後天可以靠努力提昇的呢?

2.2 提昇軟硬智力

2.21 提昇硬智力

注意身體健康, 不要做遺反物理定律或生物定律的事.

例如, 要有適量的睡眠, 不要以為可以長時間 “開夜車”(讀書至深夜也不睡).

短時期的開夜車是可以的. 但是整個月都這樣的話, 整個腦都呆了起來, 智力下降, 得不償失.

大學時期, 我有一個高考3A 的同學. 我問他讀書的技巧. 他答了一些要點. 最後一個是

”千萬不要開夜車，這點非常重要…”

2.22 提昇軟智力

3.11 洗衣機與電飯煲

3.12 鱷魚與長頸鹿

3.2 迷宮

4. 專等於博

2007.10.14 Sunday (c) CHK2

Maths | Physics | Witten

Posted on October 13, 2007 by rpflee

Sir Michael Atiyah said of Witten,

“Although he is definitely a physicist (as his list of publications clearly shows) his command of mathematics is rivalled by few mathematicians, and his ability to interpret physical ideas in mathematical form is quite unique. Time and again he has surprised the mathematical community by his brilliant application of physical insight leading to new and deep mathematical theorems… he has made a profound impact on contemporary mathematics. In his hands physics is once again providing a rich source of inspiration and insight in mathematics. ”

2007.10.13 Saturday CHK2

2.1 軟硬智力

Posted on October 10, 2007 by rpflee

1.1 專博之爭

究竟應該做一個專家還是一個博士呢?

1.2 第二是沒有意思的

1.31 對策一

哪應該取專還是取博呢?

1.32 對策二

哪怎樣保證可以做到第一?

2.1 軟硬智力

一個人的智力是先天已定, 還是後天可以靠努力提昇的呢?

勤能補拙嗎?

以為勤不能補拙的人有點不負責任: 未曾努力就說自己拙.
以為勤能補拙的人又有點天真：難道聰明的人不會勤力嗎? 聰明的人往往是最勤力的人.

一個人的智力受先後天兩方面的影響:
正如一部電腦的效能一方面受硬件的影響，另一方面受軟件的影響．

一個天才的腦子不努力，就像買了強大的電腦裝備後不安裝軟件程式，變成廢電腦.

另一方面，如果電腦硬件裝備本身不足，無論安裝多利害的軟件也會運行得很慢，沒有大作為．

哪如何提高自己的IQ呢?

2.2 提昇軟硬智力

3.1 洗衣機與電飯煲

3.2 鱷魚與長頸鹿

4. 專等於博

2007.10.10 Wednesday (c) CHK2

機會成本

Posted on October 9, 2007 by rpflee

In economics, opportunity cost is

the cost of something in terms of an opportunity forgone
(and the benefits which could be received from that opportunity),
or the most valuable forgone alternative
(or the highest-valued option forgone)
~~i.e. the second best alternative.~~

— Wikipedia, Modified by Me

2007.10.07 Tuesday CHK2

Weighting

Posted on October 8, 2007 by rpflee

Study: Physics PhD Year 1

“Only those who will risk going too far can possibly find out how far one can go.” — T. S. Eliot

2007.10.08 Monday (c) CHK2

Translation

Posted on October 6, 2007 by rpflee

Generator of Translation

$e^{a \frac{d}{dx}} = \sum_{n=0}^\infty \frac{1}{n!} a^n \left( \frac{d}{dx}\right)^n f(x)$

$f(x) = \sum_{n=0}^{\infty} \frac{f^{(n)}(a)}{n!}(x-a)^n$

$f(x+a) = \sum_{n=0}^{\infty} \frac{f^{(n)}(a)}{n!} x^n$

$f(a+x) = \sum_{n=0}^{\infty} \frac{f^{(n)}(x)}{n!} a^n$

$= \sum_{n=0}^{\infty} \frac{1}{n!} a^n \left( \frac{d}{dx} \right)^n f(x)$

$e^{a \frac{d}{dx}} f(x) = f(x+a)$

.

2007.10.06 Saturday (c) CHK2

Recognizer and nurturer of talent

Posted on October 6, 2007 by rpflee

1. It is a rare, special human trait in teachers to be able to deal with students more talented than themselves, being able to kindly and effectively transfer their life experience and body of knowledge to those more gifted.

2. László Rátz was such a teacher, with refined sense for talent that he dealt with as equals, as colleagues, as peers.

3. For instance, when he felt he could no longer provide anything more to Johnny Neumann, he requested the university professor Michael Fekete to help out and teach him.

4. Eugene Wigner was asked in the late 1970’s ‘Do you remember Rátz?’ to which he answered: ‘There he is!’ and pointed to a picture of Rátz on his office wall.

— Wikipedia

2007.10.06 Saturday CHK2