Science rejects the indeterminate.

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.

We study the past ecological history, with the conscience of the present ecological conditions. The key to predict future aquatic ecosystem changes.

Everywhere you travel to, be fully there.

To create laughter, you must first learn to smile

The death of Jesus is the pivotal event of human history and everything needs to be understood in light of that.

You can't expect someone born into a family with no music...to understand when I'm conducting the Schönberg Variations.

I'll tell you what leadership is. It's persuasion and conciliation, and education, and patience.

Everyone has the attitude that movies aren't just disposable entertainment - they can really mean something. I love that, because that's the way I feel about films.

You couldn't hurt a fly." Actually I was pretty good at pinging flies right out of the air, but I tried to look appropriately harmless.

To live anywhere in the world today and be against equality because of race or color is like living in Alaska and being against snow.

If I were given a change of life, I'd like to see how it would be to live as a mere six-footer.