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我不是一個(gè)沉溺于過(guò)去的人。

數(shù)學(xué)是過(guò)去與未來(lái)的對(duì)話。

The mind is everything. What you think you become.

Small habits, big changes.

I'm not a perfect person, I never claimed to be. But I'm trying every day to be better than I was yesterday.