Confidence is not "they will like me", it's "I'll be fine if they don't".

“小河都知道这个道理：别着急，我们总有一天会到那里的。”

我知道，有个道理你们已经听过成千上万次了。但那是真的：艰辛的工作带来回报。如果你希望好起来，你就必须练习、练习，再练习。

了解你是否能信任某人的最好方法就是信任他们。

Representation of the world, like the world itself, is the work of men; they describe it from their own point of view, which they confuse with the absolute truth.

数学的本质在于它的自由。