The understanding between a non-technical writer and his reader is that he shall talk more or less like a human being and not like an Act of Parliament. I take it that the aim of such books must be to convey exact thought in inexact language... he can never succeed without the co-operation of the reader.

It cannot be denied that for a society which has to create scarcity to save its members from starvation, to whom abundance spells disaster, and to whom unlimited energy means unlimited power for war and destruction, there is an ominous cloud in the distance though at present it be no bigger than a man's hand.

Probably the simplest hypothesis... is that there may be a slow process of annihilation of matter.

An ocean traveler has even more vividly the impression that the ocean is made of waves than that it is made of water.

Every body continues in its state of rest or uniform motion in a straight line, except insofar as it doesn't.

You cannot disturb the tiniest petal of a flower without the troubling of a distant star.

The quest of the absolute leads into the four-dimensional world.