"Blind faith, no matter how passionately expressed, will not suffice. Science for its part will test relentlessly every assumption about the human condition."

Previous Quote

In the Life of Darwin by his son, there is related an incident of how the great naturalist once studied long as to just what a certain spore was. Finally he said, "It is this, for if it isn't, then what is it?" And all during his life he was never able to forget that he had been guilty of this unscientific attitude, for science is founded on certitude, not assumption.

— Elbert Hubbard