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

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'.

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.

True science teaches us to doubt and, in ignorance, to refrain.

So learn how much you're worth to God. Revel in that information and then walk in it.

How little we really know about the life all around us. Would we be so cavalier and ruthless with it if we understood it better?

In family life love is the oil that eases friction the cement that binds closer together and the music that brings harmony.

I share the anger, but, ultimately, to govern this country, it takes more than anger. It takes experience. It takes positions that reflect the best values of the American people.

Nothing is ever the same as they said it was. It's what I've never seen before that I recognize.

wide is the gate and broad is the way that leads to temptation!

One cannot create happiness with beautiful objects, but one can spoil quite a lot of happiness with bad ones

Summation of Leviathan: "The axiom, fear; the method, logic; the conclusion, despotism."

We are awakening to that marvelous truth, that Christ is not in the heavens only, nor the atmosphere only, but Christ is in you.

We must become the change we want to see.