任何一代人最伟大的发现是，一个人可以通过改变态度来改变他的生活。

The painter must give a completely accurate account of their experience of looking at the subject.

No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.

可能是公鸡在啼叫，但下蛋的是母鸡。