Size is not grandeur, and territory does not make a nation.
Science is simply common sense at its best, that is, rigidly accurate in observation, and merciless to fallacy in logic.
Teach a child what is wise, that is morality. Teach him what is wise and beautiful, that is religion!
The best men of the best epochs are simply those who make the fewest blunders and commit the fewest sins.
The Bible has been the Magna Carta of the poor and of the oppressed.
The chess-board is the world, the pieces are the phenomena of the universe, the rules of the game are what we call the laws of Nature. The player on the other side is hidden from us.
The child who has been taught to make an accurate elevation, plan, and section of a pint pot has had an admirable training in accuracy of eye and hand.
The doctrine that all men are, in any sense, or have been, at any time, free and equal, is an utterly baseless fiction.
The great thing in the world is not so much to seek happiness as to earn peace and self-respect.
The great tragedy of science - the slaying of a beautiful hypothesis by an ugly fact.
The improver of natural knowledge absolutely refuses to acknowledge authority, as such. For him, skepticism is the highest of duties; blind faith the one unpardonable sin.
Sit down before fact as a little child, be prepared to give up every conceived notion, follow humbly wherever and whatever abysses nature leads, or you will learn nothing.