"You know, you read about the future. You can't help that. I don't look upon the future. I am not a politician. I am n…"

"A problem thoroughly understood is always fairly simple. Found your opinions on facts, not prejudices. We know too ma…"

"The key to economic prosperity is the organized creation of dissatisfaction."

"Logic is a way of going wrong systematically."

"You are always too late with a development if you are so slow that people demand it before you yourself recognize it.…"

"Why is the human skull as dense as it is? Nowadays we can send a message around the world in one-seventh of a second,…"

"There are two kinds of courage. One is a spontaneous explosion of aroused instincts to meet some sudden emergency; th…"

"We think we are smart because we have been flying for about sixty years. Birds and bees and butterflies have been fly…"

"We find that in research a certain amount of intelligent ignorance is essential to progress; for, if you know too muc…"

"The Wright brothers flew right through the smoke screen of impossibility."