Great errors seldom originate but with men of great minds.
Events appear sad, pleasant, or painful, not because they are so in reality, but because we believe them to be so and the light in which we look at them depends upon our own judgment.
I would have preferred to have been born in any other time than our own.
Man has not a greater enemy than himself.
For though I am a body of this earth, my firm desire is born from the stars.
And men go about to wonder at the heights of the mountains, and the mighty waves of the sea, and the wide sweep of rivers, and the circuit of the ocean, and the revolution of the stars, but themselves they consider not.