It is impossible to read in America, except on a train, because of the telephone. Everyone has a telephone, and it rings all day and most of the night.

Nine-tenths of the activities of a modern Government are harmful; therefore the worse they are performed, the better.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

The most essential characteristic of scientific technique is that it proceeds from experiment, not from tradition.

Those whose lives are fruitful to themselves, to their friends, or to the world are inspired by hope and sustained by joy: they see in imagination the things that might be and the way in which they are to be brought into existence.

We believe, first and foremost, what makes us feel that we are fine fellows.

In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.