“The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.”

“A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”

“We are star stuff harvesting sunlight.”

“We make our purpose.”

“Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggre...”

“If it can be destroyed by the truth, it deserves to be destroyed by the truth.”

“Today I want to belong. I want to feel safe and at home. I want to be aware of what it is like simply to be, without defenses or desires. I will appreciate the flow of life for what it is-my own tr...”

“Nature reflects the moods of the wizard.”

“My calling ties me to no office, makes me no man's slave, compels me to no action which my soul condemns. It sets me free from town life, which I loathe; and allows me to breathe clean air, to exer...”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”