我们最爱的故事会永远活在我们心中。

The natural effort of every individual to better his own condition， when suffered to exert itself with freedom and security， is so powerful a principle that it is alone， and without any assistance， not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.

数学的美在于它能够简化复杂的现象。

对做好自己的事感到满足，不必理会别人如何议论你。

I'm not a child, I'm an adult.

You see things; and you say, 'Why?' But I dream things that never were; and I say, 'Why not?'