"An empire founded by war has to maintain itself by war."

"An author is a fool who, not content with boring those he lives with, insists on boring future generations."

"It is not the young people that degenerate they are not spoiled till those of mature age are already sunk into corruption."

"Friendship is an arrangement by which we undertake to exchange small favors for big ones."

"Reason, observation, and experience the holy trinity of science."

"The cult of the individual is killing us. I think Twitter signals the death of western civilisation, but people have been saying that since Demosthenes."

"Before I was a mom I used to think that parents who worried about their kids watching MTV were just clueless. Now that I'm a mom, I see what the fuss was all about!"

"The reason we wouldn't make a seven-inch tablet isn't because we don't want to hit a price point, it's because we don't think you can make a great tablet with a seven-inch screen."