When we inform, we lead from strength; when we communicate, we lead from weakness—and it is precisely this confession of mortality that engages the ears, heads and hearts of those we want to enlist as allies in a common cause.

The real danger is not that computers will begin to think like men, but that men will begin to think like computers.

Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolable.

A person is either himself or not himself; is either rooted in his existence or is a fabrication; has either found his humanhood or is still playing with masks and roles and status symbols. And nobody is more aware of this difference (although unconsciously) than a child. Only an authentic person can evoke a good response in the core of the other person; only person is resonant to person.

When I hear somebody sigh, 'Life is hard,' I am always tempted to ask, 'Compared to what?'

Enemies, as well as lovers, come to resemble each other over a period of time.

Skepticism is not an end in itself; it is a tool for the discovery of truths.