Il ne fallait jamais faire des expériences pour confirmer ses idées, mais simplement pour les contrôler. We must never make experiments to confirm our ideas, but simply to control them.

It is what we know already that often prevents us from learning.

The experimenter who does not know what he is looking for will not understand what he finds.

When we meet a fact which contradicts a prevailing theory, we must accept the fact and abandon the theory, even when the theory is supported by great names and generally accepted.

Man can learn nothing unless he proceeds from the known to the unknown.

The terrain is everything; the germ is nothing.

Art is 'I'; science is 'we'.

A fact in itself is nothing. It is valuable only for the idea attached to it, or for the proof which it furnishes.

Those who do not know the torment of the unknown cannot have the joy of discovery.

Science increases our power in proportion as it lowers our pride.

All the vital mechanisms, varied as they are, have only one object, that of preserving constant the conditions of life in the internal environment.

I'd spent so long trying to fit in, trying to be someone i wasn't, that i had no idea who i was any more.

A staggering amount of people blame their lives for their miseries, but little do they know that one's repeated interpretations of one's life create one's constant feelings.

Playing the game I have learned the meaning of humility. It has given me an understanding of futility of the human effort.

Look back, to slavery, to suffrage, to integration and one thing is clear. Fashions in bigotry come and go. The right thing lasts.

Your mind is the strongest and most valuable muscle you can grow in the gym.

When we find unjustified spikes in the prices of long-standing life-saving drugs, we should slap penalties on companies trying to cheat people who need those drugs!

When you make an omelet, as when you make love, affection counts for more than technique.

There is no Christian duty that is not to be seasoned and set off with cheerishness, which in a thousand outward and intermitting crosses may yet be done well, as in this vale of tears.

The American idiom has much to offer us that the English language has never heard of