The memory of benefits is a frail defence against ingratitude.
Ask counsel of him who rules himself well.
I shall do down in history as the man who opened a door!
It should not be hard for you to stop sometimes and look into the stains of walls, or ashes of a fire, or clouds, or mud or like places, in which...you may find really marvellous ideas.
He who truly knows has no occasion to shout.
The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.