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].

You can learn more about human nature by reading the Bible than by living in New York.

If happiness truly consisted in physical ease and freedom from care the happiest, individual would not be either a man or a woman it; it would be, I think a cow.

Herein lies the real value of education. Advanced education may or may not make men and women more efficient; but it enriches personality, increases the wealth of the mind, and hence brings happiness.

Every time you acquire a new interest, even more, a new accomplishment, you increase your power of life.

The happiest people in this world are those who have the most interesting thoughts.

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.