Daily Archives: August 9, 2012

Tricki

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Sir William Timothy Gowers, FRS (born 20 November 1963, Wiltshire) is a British mathematician. In 1998 he received the Fields Medal for his research connecting the fields of functional analysis and combinatorics.

Tricki

Tricki.org is a Wikipedia-style project collecting methods of mathematical problem solving conceived in 2008 and launched by Gowers, Olof Sisask and Alex Frolkin in March 2009. Terence Tao and Ben Green are among those to have contributed articles.

The Cost of Knowledge

In January 2012 Gowers made a post on his personal blog which initiated a project called The Cost of Knowledge. The blog post called for a boycott of Elsevier. The Cost of Knowledge is a petition for change in which researchers commit to discontinue support for Elsevier journals. As a result, Gowers has been credited with starting the Academic Spring.

— Wikipedia on Timothy Gowers

2012.08.09 Thursday ACHK

理智與感情

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The good life is one inspired by love and guided by knowledge.

– What I Believe (1925), Bertrand Russell

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發乎情 止乎禮 –

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恰如其份的感性，是理性的極致。

— Me@2011.11.02

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2012.08.09 Thursday (c) All rights reserved by ACHK

巴士原理

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背誦製成品 8

這段改編自 2010 年 6 月 3 日的對話。

除非考試課程範圍有要求，否則，有很多公式或者現成的方法，你可以立刻使用，而毋須百分百追求它們的來源出處。千萬不要有一個心態：我要百分百明白一樣東西，才肯使用它。有著這個心態的話，莫講話讀書考試，就連日常生活，你也會過不到，例如：

甲：你不是趕時間的嗎？為什麼不肯上那輛巴士（公共汽車）？

乙：因為我想來想不通，那輛巴士運作原理。為什麼它可以高速行走的呢？

甲：……

這個雖然是一個荒誕笑話。但是，有很多年青人，正正是抱著這個荒誕的心態去讀書。我年青時都是那樣，節外生枝後再節外生枝，導致浪費了極多的讀書時間。

留意，我並不是叫你在讀書時，每每不求甚解。我的意思是，「百分百明白」並不是合理的期望，因為你沒有無限的時間。學習任何一樣東西時，明白到一定的程度後，你就要立刻練習使用，而不應節外生枝。

至於要明白到什麼程度，則要視乎上文下理。例如，如果你是巴士乘客，你只要明白如何付款、在那個站上車 和 在那個站下車。即使你是巴士司機，你亦毋須明白太多巴士的機械原理。你只要明白如何安全地駕駛那輛巴士就可以。如果你是修理巴士的師傅，你就真的要明白，為何巴士可以行走。

— Me@2012.08.09

2012.08.09 Thursday (c) All rights reserved by ACHK