All that is good in man lies in youthful feeling and mature thought

The man of imagination who is untrained (unlearned, uneducated, undisciplined) has wings and no feet.

Old age deprives the intelligent man only of qualities useless to wisdom

Only choose in marriage a woman whom you would choose as a friend if she were a man

Only choose in marriage a man whom you would choose as a friend if he were a woman.

Man's greatness lies in his power of thought.