“A matter of physics—Length and Tension—How does the performer make it sing above the laws of sound?”

“The laws of history are as absolute as the laws of physics, and if the probabilities of error are greater, it is only because history does not deal with as many humans as physics does atoms, so that individual variations count for more.”

“It’s not if, but when I’ll if on you that matters. How does Tuesday at noon sound?”

“In the beginning, there was physics. "Physics" describes how matter, energy, space, and time behave and interact with one another. The interplay of these characters in our cosmic drama underlies all biological and chemical phenomena. Hence everything fundamental and familiar to us earthlings begins with, and rests upon, the laws of physics. When we apply these laws to astronomical settings, we deal with physics writ large, which we call astrophysics.”

“What does it matter how cultivated and up-to-date we are, or how many thousands of books we’ve read? What matters is how we feel, how we see, what we do after reading; whether the street and the clouds and the existence of others mean anything to us; whether reading makes us, physically, more alive.”

“It does wonders for my own psyche to turn envy into inspiration. No matter how successful we become, we're never above that.”