“After sleeping through a hundred million centuries we have finally opened our eyes on a sumptuous planet, sparkling with color, bountiful with life. Within decades we must close our eyes again. Isn’t it a noble, an enlightened way of spending our brief time in the sun, to work at understanding the universe and how we have come to wake up in it? This is how I answer when I am asked—as I am surprisingly often—why I bother to get up in the mornings.”

“I am thrilled to be alive at time when humanity is pushing against the limits of understanding. Even better, we may eventually discover that there are no limits.”

“However brief our time in the sun, if we waste a second of it, orcomplain that it is dull or barren or (like a child) boring, couldn'tthis be seen as a callous insult to those unborn trillions who willnever even be offered life in the first place?”

“There is an anaesthetic of familiarity, a sedative of ordinariness which dulls the senses and hides the wonder of existence. For those of us not gifted in poetry, it is at least worth while from time to time making an effort to shake off the anaesthetic. What is the best way of countering the sluggish habitutation brought about by our gradual crawl from babyhood? We can't actually fly to another planet. But we can recapture that sense of having just tumbled out to life on a new world by looking at our own world in unfamiliar ways.”

“Less abject but more shocking was the letter from the Founder of the Calvary Tabernacle Association in Oklahoma: Professor Einstein, I believe that every Christian in America will answer you, 'We will not give up our belief in our God and his son Jesus Christ, but we invite you, if you do not believe in the God of the people of this nation, to go back where you came from.' I have done everything in my power to be a blessing to Israel, and then you come along and with one statement from your blasphemous tongue, do more to hurt the cause of your people than all the efforts of the Christians who...”

“Let us try to teach generosity and altruism, because we are born selfish. Let us understand what our own selfish genes are up to, because we may then at least have the chance to upset their designs, something that no other species has ever aspired to do.”

“From time to time it's fun to close our eyes, and in that dark say to ourselves, 'I am the sorcerer, and when I open my eyes I shall see a world that I have created, and for which I and only I am completely responsible.' Slowly then, eyelids open like curtains lifting stage-center. And sure enough, there's our world, just the way we've built it.”