“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.”

“There are no facts, only interpretations.”

“My story is of such marvel that if it were written with a needle on the corner of an eye, it would yet serve as a lesson to those who seek wisdom.”

“There are 1,198,500,000 people alive now in China. To get a feel for what that means, simply take yourself - in all your singularity, importance, complexity, and love - and multiply by 1,198,500,00...”

“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.”

“Sometimes it's not enough to know what things mean, sometimes you have to know what things don't mean.”

“Dont cry and dont rage. Understand.”

“The only way to heal yourself was to understand. Understand the love or the hate or the cowardice, or the impulsiveness, the lack of will of the one who hurt you--the circumstances that twisted the...”