The ubiquitous if-then-else structure, now taken for granted as an essential element of any programming language, was invented by McCarthy for use in Lisp, where it saw its first appearance in a more general form (the cond structure). It was inherited by Algol, which popularized it.
— Wikipedia on Lisp (programming language)
2011.01.08 Saturday ACHK
by Manuel J. Smith
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Habit 4: Think Win-Win or No-Deal
— The Seven Habits of Highly Effective People
— Stephen R. Covey
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Being assertive is to be firm in protecting one’s own rights, but without violating those of others.
— Me@2011.01.08
— Me@2022-10-18
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2011.01.08 Saturday (c) All rights reserved by ACHK
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* Don’t get set into one form, adapt it and build your own, and let it grow, be like water. Empty your mind, be formless, shapeless — like water. Now you put water in a cup, it becomes the cup; You put water into a bottle it becomes the bottle; You put it in a teapot it becomes the teapot. Now water can flow or it can crash. Be water, my friend.
o Bruce Lee: A Warrior’s Journey (2000); here, Lee was reciting lines he wrote for his short lived role on the TV series Longstreet.
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2011.01.08 Saturday ACHK
這段改篇自 2010 年 4 月 23 日的對話。
要留意，「每題立刻驗算」並不如想像中那麼花時間。一題數要運算三分鐘，不代表要驗算三分鐘。例如，解一題方程用了三分鐘，才得到答案。驗算時，你只需把你計到的答案，代落原本方程的左手邊，看看數值是否和右手邊的相等。這個過程，一定會在三十秒以內。
另外，「每題立刻驗算」還會為你帶來心理上的優勢。每題立刻驗算的話，每題驗算之後，你就不需要再理會它。那樣，你的心理就少了一個負擔。你就可以全心去投入思考下一題。不每題立刻驗算的話，考試中途無論做了多少題目，你也不知道自己可以拿到多少分。那樣，你會很不安。而「不安」的心理會影響你的思考清晰程度，從而減低你想通往後題目的機會，構成實質的分數損失。
— Me@2011.01.08
2011.01.08 Saturday (c) All rights reserved by ACHK
Physics Town 
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