Inevitably our opinions cover a bigger space, a longer reach of time, a greater number of things, than we can directly observe. They have, therefore, to be pieced together out of what others have reported and what we can imagine.

The justification of majority rule in politics is not to be found in its ethical superiority.

The simple opposition between the people and big business has disappeared because the people themselves have become so deeply involved in big business.

There is but one bond of peace that is both permanent and enriching: The increasing knowledge of the world in which experiment occurs.

When everyone thinks the same, nobody is thinking.

Men are mortal, but ideas are immortal.

Every man whose business it is to think knows that he must for part of the day create about himself a pool of silence.