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兩條路在樹林中分岔，我選著走人少的那一條，這就導致了所有的不同。

宇宙的周期性變化源于愛和爭斗的相互支配。

Quality is never an accident; it is always the result of intelligent effort.

Man is defined as a human being and a woman as a female — whenever she behaves as a human being she is said to imitate the male.

釋義：救助他人要在他們最危急的時候施以援手，施舍幫助要在他們最困厄的時候給予支持。

Theorems are the permanent literature of mathematics.

While you invent， don't select. While you sketch， don't inspect. While you write the first draft， don't reflect.