We can most safely achieve truly universal tolerance when we respect that which is characteristic in the individual and in nations, clinging, though, to the conviction that the truly meritorious is unique by belonging to all of mankind.

To think is easy. To act is hard. But the hardest thing in the world is to act in accordance with your thinking.

Desire is the presentiment of our inner abilities, and the forerunner of our ultimate accomplishments.

The greater the knowledge, the greater the doubt.

The really unhappy person is the one who leaves undone what they can do, and starts doing what they don't understand; no wonder they come to grief.

The arts are the salt of the earth; as salt relates to food, the arts relate to technology.

Of all thieves, fools are the worst; they rob you of time and temper.