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數學家的模式，就像畫家或詩人的模式一樣，必須是美麗的；思想，就像顏色或文字一樣，必須以和諧的方式結合在一起。

生活對智者是一場夢，對愚者是一場游戲，對富人是一場喜劇，對窮人是一場悲劇。

The idea that everyone should slavishly work so they do something inefficiently so they keep their job – that just doesn’t make any sense to me. That can’t be the right answer.

The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.

In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.

消費者的信任是我們最寶貴的財富，我們必須珍惜。