Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

The past is a foreign country; they do things differently there.

能够弯曲的心灵是幸运的，因为它永远不会破碎。

在数学中，旅程往往比目的地更重要。

历史数据以不同寻常的力量支持了一个结论。要成功投资，您必须成为长期投资者。