“We are always trying to convert people to a belief in our own explanation of the universe. We think that the more people there are who believe as we do, the more certain it will be that what we bel...”

“Death is our constant companion, and it is death that gives each person's life its true meaning.”

“Human beings are the only ones in nature who are aware that they will die. For that reason and only for that reason, I have a profound respect for the human race, and I believe that its future is g...”

“Still, being fragile creatures, humans always try to hide from themselves the certainty that they will die. They do not see that it is death itself that motivates them to do the best things in thei...”

“We must never stop dreaming. Dreams provide nourishment for the soul, just as a meal does for the body.”

“Once a problem is solved, its simplicity is amazing.”

“They keep track of time. Sometimes things happen and you feel that you need to mark them down.”

“Does religious conviction provide a powerful reason for killing? Undeniably it often does. It also often provides the sole compelling reason for refusing to kill, or for being merciful, or for seek...”

“the past only had whatever power you gave it; life was what you made it and if you wanted something different from what you had, it was up to you to make it happen.”