“Mark Twain once said that history doesn't repeat itself, but it does rhyme.”

“Keep in mind that imagination is at the heart of all innovation. Crush or constrain it and the fun will vanish.”

“Today we know more about Jupiter than the guy who lives next door to us. We can predict where an election will go, we can turn a gene on or off, and we can even send a robot to Mars, but we are los...”

“Time is our most valuable nonrenewable resource, and if we want to treat it with respect, we need to set priorities.”

“A human being in this aged nation of ours is a very wonderful whole, the slow creation of long interchanging influences; and charm is a result of two such wholes, the one loving and the one loved.”

“The more one judges, the less one loves.”

“[N]one of us drinks the chalice of our existence to the last drop. None of us is fully obedient. Each of us falls short of the human nature entrusted to us.”