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勇氣是壓力下的優雅。

Your voice is your power.

"History is the present projected backwards."

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

每一個數學問題都是一個等待解決的謎題，每一個解決方案都是邁向更深入理解的一步。

I’ll never stop helping and loving people the way Jesus said to.

The computer is simply an instrument whose music is ideas.