"If someone can prove me wrong and show me my mistake in any thought or action, I shall gladly change. I seek the truth, which never harmed anyone: the harm is to persist in one's own self-deception and ignorance."
"The first rule is to keep an untroubled spirit. The second is to look things in the face and know them for what they are."
"Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present."
"All things fade and quickly turn to myth."
"The soul becomes dyed with the colour of its thoughts."
"What we cannot bear removes us from life; what remains can be borne."