Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise.

Never think that you already know all. However highly you are appraised, always have the courage to say to yourself-I am ignorant.

Don't become a mere recorder of facts, but try to penetrate the mystery of their origin.

When the dog is repeatedly teased with the sight of objects inducing salivary secretion from a distance, the reaction of the salivary glands grows weaker and weaker and finally drops to zero.

Science demands from a man all his life. If you had two lives that would not be enough for you. Be passionate in your work and in your searching.

While you are experimenting, do not remain content with the surface of things.

Men are apt to be much more influenced by words than by the actual facts of the surrounding reality

Appetite, craving for food, is a constant and powerful stimulator of the gastric glands.

It is still open to question whether psychology is a natural science, or whether it can be regarded as a science at all.

Perfect as the wing of a bird may be, it will never enable the bird to fly.

School yourself to demureness and patience. Learn to inure yourself to drudgery in science. Learn, compare, collect the facts.

Use fear to become braver, pain to become stronger, trials to become wiser, and misfortune to become better.

People who understands how to convert their time into useful products do not complain of boredom.

What is admirable about the fantastic is that there is no longer anything fantastic: there is only the real.

Work is always an antidote to depression.

What you do affects your awareness field. When you do something selfless your attention feild is more clear, more lucid.

Simplify your life and your mind. Think more of infinity and less of yourself.

I think I'm a fairly average person, I think I have only a medium IQ. I didn't go to college, obviously.

I have your word?” “You trust my word?” “You’re an idealistic fool. Of course.

democracy always makes for materialism, because the only kind of equality that you can guarantee to a whole people is, broadly speaking, physical.

The biggest lies we save for ourselves.