The desires， and other passions of man， in themselves， are in his own power； his real difficulties are， to know when they are to be controlled， and when not.

数学真理是普遍而永恒的。

The human mind is not a blank slate at birth.

我不是那种会让我的比赛水平下降的人。

I believe in Spinoza's God, Who reveals Himself in the lawful harmony of the world, not in a God Who concerns Himself with the fate and the doings of mankind.