903  Man needs his difficulties because they are necessary to enjoy success,
1009  Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
994  You must not lose the faith in Humanity. Humanity is an ocean, if the few drops of ocean are dirty, the ocean does not become dirty....
1755  Intelligence is in the head, not in the age
2881  “You educate a man; you educate a man. You educate a woman; you educate a generation.”