In every man's heart there is a secret nerve that answers to the vibrations of beauty.

A man who has never made a woman angry is a failure in life.

From now until the end of time no one else will ever see life with my eyes, and I mean to make the best of my chance.

The world has been printing books for 450 years, and yet gunpowder still has a wider circulation. Never mind! Printer's ink is the greater explosive: it will win.

A doctor is advertised by the bodies he cures. My business is advertised by the minds I stimulate. And let me tell you that the book business is different from other trades. People don't know they want books. I can see just by looking at you that your mind is ill for lack of books but you are blissfully unaware of it!

The unluckiest insolvent in the world is the man whose expenditure of speech is too great for his income of ideas.

There are a lot of people who must have the table laid in the usual fashion or they will not enjoy the dinner.