The past is a foreign country; they do things differently there.

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

One’s attitude to oneself is the single most important factor in living a long and reasonably happy life.

你是自己人生故事的作者。

黑夜比白昼更忠诚。

儿童的进步不是取决于年龄，而是取决于能够自由地观看他周围的一切。