Jean Rostand

“Nothing is more dangerous than an idea, when it's the only one we have.”

“It is the beautiful task of science to substitute facts for appearances and demonstrations for impressions.”

“A fine quotation is a diamond in the hand of a man of wit and a pebble in the hand of a fool.”

“To kill a man is not to defend a doctrine, but to kill a man.”

“The obligation to endure gives us the right to know.”

“Culture is what remains when one has forgotten everything.”

“We must be good, and then we must be happy.”

“The truth is what stands the test of experience.”

“Before being a scientist, I am a man.”

“Patience is a conquering virtue.”

“It is easier to die for an idea than to live for it.”

“The world has no need of a new order, but of men of a new order.”

“Science has made us gods before we are worthy of being men.”

“A man is not old as long as he is seeking something.”

“Theories are nets; only he who casts will catch.”

“Theories pass. The frog remains.”

“A science that hesitates to forget its founders is lost.”

“My pessimism goes to the point of suspecting the sincerity of the pessimists.”