“Science rests on reason and experiment, and can meet an opponent with calmness; but a belief is always sensitive.”

“The endurance of the inequalities of life by the poor is the marvel of human society.”

“A person possessed with an idea cannot be reasoned with.”

“Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing in itself.”

“Superior strength is found in the long run to lie with those who had right on their side.”

“Science rests on reason and experiment, and can meet an opponent with calmness; but a belief is always sensitive.”

“We read the past by the light of the present, and the forms vary as the shadows fall, or as the point of vision alters.”