Daily Archives: March 19, 2010

天人天書

Posted on by

無足夠資料 3

Past papers 10

“Past papers” means “past HKCEE/HKAL examination papers”. The topic is for Hong Kong students who are facing HKCEE or HKAL. But the general principles can also be used for tackling other public examinations.

這段改篇自2010年 1 月 3 日的對話。

「你的 physics 老師根本沒有教內容。」

「起碼你知道你 physics 讀得不好，都不是你自己的問題，而是你的 physics 老師失職。」

…

（不只指 physics 科，）自己讀極也讀得不好，往往不是自己的問題，而是老師或教科書作者的問題。

我因為不知這個要點，錯怪自己，前後總共浪費了六年的時間。一生人，有多少個六年呢？

你要記住這一點，千萬不要胡亂怪責自己而對自己說：「讀極也讀得不好，一定是因為我自己愚蠢。」

我以前有學生就是這樣，智力健康正常，卻反復說自己很愚蠢。原因是她當時花了很大的努力，physics 科的成績仍然很差。所以我要不斷提醒她：「你只是無知，不是愚蠢。『無知』的意思是，你沒有足夠知識。所以，只要我把必須的知識教給你，你的成績自然會好。」幸好，她最後也明白我的意思，不再誤解自己，說自己愚蠢。

某一科的成績差，有兩個可能的原因，一個是無知，一個是愚蠢。

無知不等於愚蠢。

「無知」的意思是，沒有足夠資料。解決無知的方法是，先收集足夠資料；「愚蠢」的意思是，即使有足夠資料，也沒有能力作出正確的判斷。解決愚蠢的方法是，轉換科目。

大部分人成績差的原因是無知，不是愚蠢。

知道這點有什麼好處呢？

當你發覺某一科的成績差時，自己起碼知道原因未必是自己愚蠢，更大的可能性是，自己對該科無知。那樣，你自然有動力繼續努力，透過收集足夠資料來解決「無知」的問題。

單憑一己之力去收集足夠資料的話，時間的成本太高。所以要在合理時間內，收集到足夠資料的話，一定要找「好老師（天人）」和「好課本（天書）」。因為「天書」和「天人」世間少有，通常都不會自己自然遇到他們，所以一定要自己主動去尋找。

雖然要找到「天人」和「天書」並不容易，但是只要給你找到一個或一本，他或它就自然會「引薦」其他「天人天書」給你。

— Me@2010.03.19

2010.03.19 Friday (c) All rights reserved by ACHK

Object-oriented programming

Posted on by

# Paul Graham has suggested that the purpose of OOP is to act as a “herding mechanism” which keeps mediocre programmers in mediocre organizations from “doing too much damage”. This is at the expense of slowing down productive programmers who know how to use more powerful and more compact techniques.

— Wikipedia on Object-oriented programming

2010.03.19 Friday ACHK

Harvey Dent 3

Posted on by

.

Sequel

On March 10, 2010, Nolan confirmed his involvement with a sequel and gave some information regarding the story. The next Batman film will be Nolan’s last and a conclusion to the story. Nolan says, “Without getting into specifics, the key thing that makes the third film a great possibility for us is that we want to finish our story. And in viewing it as the finishing of a story rather than infinitely blowing up the balloon and expanding the story . . . I’m very excited about the end of the film, the conclusion, and what we’ve done with the characters. My brother has come up with some pretty exciting stuff. Unlike the comics, these things don’t go on forever in film and viewing it as a story with an end is useful. Viewing it as an ending, that sets you very much on the right track about the appropriate conclusion and the essence of what tale we’re telling. And it hearkens back to that priority of trying to find the reality in these fantastic stories. That’s what we do.” Nolan has also confirmed that Jonathan Nolan is writing the script and that the villain of the film “won’t be Mr. Freeze.”

— Wikipedia on The Dark Knight (film)

.

.

.

2010.03.19 Friday ACHK