The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

The truth is rarely pure and never simple.

风携带着未来的种子，而过去是它们生长的土壤。

"Sometimes the quietest illustrations speak the loudest."

Happiness is like a butterfly; the more you chase it, the more it will elude you. But if you turn your attention to other things, it will come and sit softly on your shoulder.

It is human nature to think wisely and act foolishly.

秋天的小提琴悠长的啜泣，用单调的忧郁刺伤我的心。

The deepest problems in mathematics often arise from the simplest questions.