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 HubbardNo man should dogmatize except on the subject of theology. Here he can take his stand, and by throwing the burden of proof on the opposition, he is invincible. We have to die to find out whether he is right.
Elbert HubbardThe only foes that threaten America are the enemies at home, and these are ignorance, superstition and incompetence.
Elbert Hubbard