One appreciates that daily life is really good when one wakes from a horrible dream, or when one takes the first outing after a sickness. Why not realize it now?

In a start-up company, you basically throw out all assumptions every three weeks.

The principle of happiness should be like the principle of virtue: it should not be dependent of things, but be a part of personality [and character].

The final test of a gentleman is his respect for those who can be of no possible service to him.

The fear of life is the favorite disease of the 20th century.

The belief that youth is the happiest time of life is founded on fallacy. The happiest person is the person who thinks the most interesting thoughts, and we grow happier as we grow older.

You can be deprived of your money, your job and your home by someone else, but remember that no one can ever take away your honor.