A verdadeira beleza da literatura está na sua capacidade de nos fazer sentir menos sozinhos.

Once we dreamt that we were strangers。 We wake up to find that we were dear to each other。

Of all men's miseries the bitterest is this: to know so much and to have control over nothing.

We cannot be sure of having something to live for unless we are willing to die for it.

每个数学问题都有解答；挑战在于找到它。