變通

Easy 3

Easy” in Chinese is “容易”, literally meaning “able to change“.

— Me@2012-11-29 10:47:38 AM

It is not the strongest of the species that survives, nor the most intelligent, but rather the one most adaptable to change.

— Charles Darwin misquotation

The definition of insanity is doing the same thing over and over and expecting different results.

— Albert Einstein misquotation

If you are willing to change based on the feedback from the reality, many difficult things will become easy.

— Me@2012.12.17

易,窮則變,變則通,通則久。

— 系辭下

— 易經

2012.12.21 Friday (c) All rights reserved by ACHK

SICM, 2

這段改編自 2010 年 4 月 3 日的對話。

《SICM》(Structure and Interpretation of Classical Mechanics)總共花了我兩年的時間。我大概由 2006 年,閱讀至 2008 年。除了閱讀課文外,我還把內裡的幾乎所有練習,無論是數學題,還是程式題,都一一擊破。要花那麼長的時間才能完成,主要是因為上班的工務繁忙。每日可以花在自修的時間,通常也不會超過半小時。

雖然時間成本奇高,但是,我仍然覺得是值得的。一來,它是一本名著,質素非常高。二來,它竟然把我人生的兩大興趣,重疊在一起。

— Me@2012.12.21

2012.12.21 Friday (c) All rights reserved by ACHK

For all

Universe 2.1

All” is “所有” in Chinese. Literally,

all = 所有 = the place has

The definition of word “universe” is “everything” or “all the things“. 

universe = all the things

However, this definition is not 100% sharp, because the meaning of “all” is relative to a list or a place. In order to give a meaning to the word “all“, you have to provide a list or a place in the sentence it appears.

When referring to a list, for example, the meaning of the phrase “all of A, B, and C” is the same as “A, B, and C“.

all of A, B, and C  =  A, B, and C

However, the definition of “universe” does not specify a list, such as

universe = all of A, B, and C

When referring to a place, for example, the meaning of the phrase “all the people in this house” is:

You keep looking for people in this house. Whoever you can find, include him or her onto your list of people. Once you cannot find new people in the house anymore, your list will have “all the people in this house“.

In other words, in order to give the word “all” a meaning, you have to provide a range for searching. However, the definition of “universe” does not specify a place, such as

universe = all the things in X,

unless we define the word “universe” as

universe = all the things in universe

However, this is a circular definition.

— Me@2012.10.16

— Me@2012.12.11

— Me@2012.12.20

2012.12.21 Friday (c) All rights reserved by ACHK