He who cannot establish dominion over himself will have no dominion over others.

Learning is the only thing the mind never exhausts, never fears, and never regrets.

The smallest feline is a masterpiece.

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.

Though I may not . . . be able to quote other authors, I shall rely on that which is much greater and more worthy - on experience.

There shall be wings! If the accomplishment be not for me, 'tis for some other. The spirit cannot die; and man, who shall know all and shall have wings.

Learning never exhausts the mind.