Happiness is beneficial for the body, but it is grief that develops the powers of the mind.

The true artist is always an anarchist.

General relativity has passed every test we’ve thrown at it, even near a supermassive black hole.

书说：她这么做是因为。生活说：她这么做了。书是向你解释事情的地方；生活是事情不被解释的地方。我不奇怪有些人更喜欢书。