"It's all done with gears. Also pinions, snails, arbors; pawls and ratchets; and cam followers; cables, levers, bell cranks, and pivots."

“By the way, the = notation was invented by Robert Recorde . He choose two parallel lines as a symbol of equality " because noe 2 thynges can be moare equalle.”

“A retired physicist reading the Encyclopedia Britannica can do just so much toward securing world peace.”

“Compared with the elegant inventions of the theorists, nature's code seemed a bit of a kludge.”

“The absence of a golden rule for mattress flipping is a disappointment, but it does not pertend the demise of civilization. We can adapt; we can learn to live with it.”

“Empires come and go; so do ideologies and even religions, but war marches on through it all.”

“I'm not a gambling person, but I've been around long enough and I know how to play it.”