True teachers not only impart knowledge and method but awaken the love of learning by their own reflected love.

Those who labor for bread or money alone are condemned to their reward.

If the estimated age of the cosmos were shortened to seventy-two years, a human life would take about ten seconds. But look at time the other way. Each day is a minor eternity of over 86,000 seconds. During each second, the number of distinct molecular functions going on within the human body is comparable to the number of seconds in the estimated age of the cosmos. A few seconds are long enough for a revolutionary idea, a startling communication, a baby's conception, a wounding insult, a sudden death. Depending on how we think of them, our lives can be infinitely long or infinitely short.

True intimacy is a human constant. People of all types find it equally hard to achieve, equally precious to hold. Age, education, social status, make little difference here; even genius does not presuppose the talent to reveal one's self completely and completely absorb one's self in another personality. Intimacy is to love what concentration is to work: a simultaneous drawing together to attention and release of energy.

Such self-transformation is the most difficult and dangerous challenge to the imagination, and it is the most rewarding. Meeting it is only possible for the person whose mind is open to contradictions and well-practiced in free conjecture.

The future is like the daytime moon, a diffident but faithful companion, so elegant as to be almost invisible, an inconspicuous marvel.

We pamper the present like a spoiled child, obeying its superficial demands but ignoring its real needs.