It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all living things, man included, with the surrounding nature.

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

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.

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.

My story is of such marvel that if it were written with a needle on the corner of an eye, it would yet serve as a lesson to those who seek wisdom.

Thinking in loneliness and speaking in public are the two things leaders are masters at.

I refuse to admit that I am more than 52 even if that makes my sons illegitimate.

You can go to any small town in America, there's going to be a metal fan there. You can't say that about post-rock.

There cannot be true democracy unless women's voices are heard. There cannot be true democracy unless women are given the opportunity to take responsibility for their own lives.

She taught me everything I knew about crawfish and kissing and pink wine and poetry. She made me different.

Shut up and say something.

This was the ethos of the intelligence analysis directorate during most of the 27 years I spent there.

being open isn't the same as being weak.

The Voice Chamber hatches a new and healthy experience of the vibrational universe