"Power and machinery, money and goods, are useful only as they set us free to live."

"An educated man is not one whose memory is trained to carry a few dates in history - he is one who can accomplish things."

"When everything seems to be going against you, remember that the airplane takes off against the wind, not with it."

"If I had asked people what they wanted, they would have said faster horses."

"Nothing is particularly hard if you divide it into small jobs."