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數算練習告訴我們算術運算的原理，而不是單單的記憶和不斷演算。

Great leaders are willing to sacrifice their own interests for the good of the team.

"We are all in the gutter, but some of us are looking at the stars."

知識的最大敵人不是無知，而是對知識的幻覺。

I don't like favors； they oppress and make me fell like a slave.I'd rather do everything for myself，and be perfectly independent.

偉大不是成為最好的，而是比以前的自己更好。