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

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.

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.

The ribbon on my wrist says: Do not open before Christmas.

The greatest conquest is the courage to be yourself.

You have to slow your heart rate, stay calm. You have to shoot in between your heartbeats.

When love turns into dust, money becomes the substitution.

Since 1980, there have been 91 breaches of security at the White House. Well, 92 if you count George Bush.

Whenever and however you give birth, your experience will impact your emotions, your mind, your body, and your spirit for the rest of your life.

I have so much to accomplish today that I must meditate for two hours instead of one.

What we live with is ourselves. And when you have your own identity you are much easier to live with.

I stalk about her door, like a strange soul upon the Stygian banks staying for waftage.