Science has made unrestricted national sovereignty incompatible with human survival. The only possibilities are now world government or death..

It is not what the man of science believes that distinguishes him, but how and why he believes it. His beliefs are tentative, not dogmatic; they are ….

The secrets to happiness include enterprise, exploration of one's interests and the overcoming of obstacles..

Science tells us what we can know, but what we can know is little, and if we forget how much we cannot know we become insensitive to many things of g….

The State is a collection of officials, different for difference purposes, drawing comfortable incomes so long as the status quo is preserved. The on….

Change is one thing, progress is another..

When the state intervenes to insure the indoctrination of some doctrine, it does so because there is no conclusive evidence in favor of that doctrine..

The typical Westerner wishes to be the cause of as many changes as possible in his environment; the typical Chinaman wishes to enjoy as much and as d….

It's not what you have lost, but what you have left that counts..

The fundamental principle in the analysis of propositions containing descriptions is this: Every proposition which we can understand must be composed….

Without civic morality communities perish; without personal morality their survival has no value..

The main thing needed to make men happy is intelligence..

When I was 4 years old ... I dreamt that I'd been eaten by a wolf, and to my great surprise I was in the wolf's stomach and not in heaven..

Many orthodox people speak as though it were the business of sceptics to disprove received dogmas rather than of dogmatists to prove them. This is, o….

I went to Salt Lake City and the Mormons tried to convert me, but when I found they forbade tea and tobacco I thought it was no religion for me..

The commonest objection to birth control is that it is against nature..

And if there were a God, I think it very unlikely that He would have such an uneasy vanity as to be offended by those who doubt His existence.

The institution of representative government to us seems an essential part of democracy, but the ancients never thought of it. Its immense merit was ….

The evolution of our spirit is blazed on the dark background of eternity by our individual wakes. Every person can, if he/she wishes, leave a more or….

Ethical metaphysics is fundamentally an attempt, however disguised, to give legislative force to our own wishes..

I am firm; YOU are obstinate; HE is a pig-headed fool..