In this world, time has three dimensions, like space. Just as an object may move in three perpendicular directions, corresponding to horizontal, vertical, and longitudinal, so an object may participate in three perpendicular futures. Each future moves in a different direction of time. Each future is real. At every point of decision, the world splits into three worlds, each with the same people, but different fates for those people. In time, there are an infinity of worlds.

Time is a rigid, bonelike structure, extending infinitely ahead and behind, fossilizing the future as well as the past.

A writer is someone who has a one-man tent in the desert and occasionally he sees the footprint of an other writer - in the form of a review or something.

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.

Scientists will forever have to live with the fact that their product is, in the end, impersonal.

A person who cannot imagine the future is a person who cannot contemplate the results of his actions. Some are thus paralyzed into inaction.

Time is the clarity for seeing right and wrong.