When we enter a new situation in life and are confronted by a new person, we bring with us the prejudices of the past and our previous experiences of people. These prejudices we project upon the new person. Indeed, getting to know a person is largely a matter of withdrawing projections; of dispelling the smoke screen of what we imagine he is like and replacing it with the reality of what he is actually like.

Our knowledge can only be finite, while our ignorance must necessarily be infinite.

I personally call the type of government which can be removed without violence 'democracy,' and the other, 'tyranny.'.

In my view, aiming at simplicity and lucidity is a moral duty of all intellectuals: lack of clarity is a sin, and pretentiousness is a crime.

We have become makers of our fate when we have ceased to pose as its prophets.

What really makes science grow is new ideas, including false ideas.

A theory is just a mathematical model to describe the observations.