The mind which can totally and inanely forget its work and obligations is often also the mind which can, at the proper time, give them the fullest attention.

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

The goal of discoverers is not to outdistance their peers, but to transcend themselves.

Individuals we consider happy commonly seem complete in the present and we see them constantly in their wholeness: attentive, cheerful, open rather than closed to events, integral in the moment rather than distended across time by regret or anxiety.

Free men and women... can think across time, viewing their own lives, inclusive of past, present, and future, as architectural wholes, static in mental space. They can therefore see, as others cannot, the cracks and buttresses of repeated action, the points of stress, the established framework. They are not perfect; but they are less imperfect than we by a full dimension of being.

At pains to define liberty, that most resolute of indefinables, our minds fall back on spatial images; on birds, sailboats, and mountains; the untethered balloon, the blue sky, the nude figure.

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.