Unconditional love. That’s what he wants to give her and what he wants from her. People should give without wanting anything in return. All other giving is selfish. But he is being selfish a little, isn’t he, by wanting her to love him in return? He hopes that she loves him in return. Is it possible for a person to love without wanting love back? Is anything so pure? Or is love, by its nature, a reciprocity, like oceans and clouds, an evaporating of seawater and a replenishing of rain?

I picked such seemingly disparate essays, I thought it was important to say what was the guiding principle in the selection rather than focus on any one essay. I reached for some principle that had been subconscious in me and lifted it into consciousness. Authenticity and sincerity were the most important unifying principles of all these apparently different essays.

One cannot walk down an avenue, converse with a friend, enter a building, browse beneath the sandstone arches of an old arcade without meeting an instrument of time. Time is visible in all places. Clock towers, wristwatches, church bells divide years into months, months into days, days into hours, hours into seconds, each increment of time marching after the other in perfect succession. And beyond any particular clock, a vast scaffold of time, stretching across the universe, lays down the law of time equally for all.

One metaphor for how we are living is that you see so may people with cell phones. In restaurants, walking, they have cell phones clamped to their to heads. When they are on their cell phones they are not where their bodies are...they are somewhere else in hyperspace. They are not grounded. We have become disembodied. By being always somewhere else we are nowhere.

I go to live in Maine for the summer. Without computer, and without the telephone service we are mercifully without the faxes and e-mails. So it's really about two and a half months that I'll feel like I can recover some silence in my life...which is so hard to find.

If I were not a writer, I would spend more time doing the things that I am already doing, which include doing research in physics, teaching, and running a nonprofit organization with a mission to empower women in Cambodia.

I consider myself a spiritual atheist. I certainly believe there are forces bigger than ourselves, and that we should be searching, individually, for meaning in our lives. But I don't believe there's a supreme being, an intelligence that created everything.