Try to learn something about everything and everything about something.
The great tragedy of science - the slaying of a beautiful hypothesis by an ugly fact.
It is not who is right, but what is right, that is of importance.
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.
Learn what is true in order to do what is right.
Logical consequences are the scarecrows of fools and the beacons of wise men.
The man of science has learned to believe in justification, not by faith, but by verification.
Patience and tenacity are worth more than twice their weight of cleverness.
The only freedom I care about is the freedom to do right; the freedom to do wrong I am ready to part with on the cheapest terms to anyone who will take it of me.
The rung of a ladder was never meant to rest upon, but only to hold a man's foot long enough to enable him to put the other somewhat higher.
Science is simply common sense at its best, that is, rigidly accurate in observation, and merciless to fallacy in logic.
Make up your mind to act decidedly and take the consequences. No good is ever done in this world by hesitation.
If a little knowledge is dangerous, where is the man who has so much as to be out of danger?
Irrationally held truths may be more harmful than reasoned errors.
Science and literature are not two things, but two sides of one thing.
The Bible has been the Magna Carta of the poor and of the oppressed.
Science is nothing, but trained and organized common sense.
Every great advance in natural knowledge has involved the absolute rejection of authority.
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.
Science is organized common sense where many a beautiful theory was killed by an ugly fact.
