“The universe seems neither benign nor hostile, merely indifferent to the concerns of such puny creatures as we are.”

— Carl Sagan, Cosmos, 1980, p. 250

About Carl Sagan

1934 – 1996

American astronomer and science communicator, author and presenter of "Cosmos".

“We make our world significant by the courage of our questions and by the depth of our answers.”

“Books are key to understanding the world and participating in a democratic society.”

“Imagination will often carry us to worlds that never were. But without it we go nowhere.”

“The unexamined life is not worth living.”

“It is unlikely that the good of a snail should reside in its shell: so is it likely that the good of a man should?”

“In theory there is nothing to hinder our following what we are taught; but in life there are many things to draw us aside.”

“If to do were as easy as to know what were good to do, chapels had been churches, and poor men's cottages princes' palaces.”

“That which makes the man no worse than he was makes his life no worse: it has no power to harm, without or within.”

“Always take the short cut; and that is the rational one. Therefore say and do everything according to soundest reason.”