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Confidence comes from within, and it's something you have to build every day.

True peace is not merely the absence of tension: it is the presence of justice.

一個好的工程師是能把挫折轉化為靈感的人。

To understand behavior, look for the utility in it.

技術最終要服務于人，而不是讓人去適應技術。

The great and chief end, therefore, of men's uniting into commonwealths, and putting themselves under government, is the preservation of their property.