I can, therefore I am.

Be thine own palace, or the world's thy jail.

The wise does at once what the fool does at last.

Quality is not an act, it is a habit.

Do not weep do not wax indignant. Understand.

Be gentle to all and stern with yourself.

To know oneself, one should assert oneself.

Well done is better than well said.

The dog that trots about finds a bone.