Customer satisfaction is worthless. Customer loyalty is priceless.

You don't have to burn books to destroy a culture. Just get people to stop reading them.

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

The four most dangerous words in investing are: 'this time it's different.'

The study of truth requires a considerable effort - which is why few are willing to undertake it out of love of knowledge - despite the fact that God has implanted a natural appetite for such knowledge in the minds of men.

我不希望我的艺术让人舒适，我希望它让人思考。