But as the work proceeded I was continually reminded of the fable about the elephant and the tortoise. Having constructed an elephant upon which the ….

You must believe that you can help bring about a better world..

Our individual life is brief, and perhaps the whole life of mankind will be brief if measured in astronomical scale.

In action, in desire, we must submit perpetually to the tyranny of outside forces; but in thought, in aspiration, we are free, free from our fellowme….

The world that I should wish to see would be one freed from the virulence of group hostilities and capable of realizing that happiness for all is to ….

Science is no substitute for virtue; the heart is as necessary for a good life as the head..

Brief and powerless is man's life; on him and all his race the slow, sure doom falls pitiless and dark..

Philosophers, for the most part, are constitutionally timid, and dislike the unexpected. Few of them would be genuinely happy as pirates or burglars.….

What is matter? Never mind..

Neither the Church nor modern public opinion condemns petting, provided it stops short at a certain point..

One of the most interesting and harmful delusions to which men and nations can be subjected is that of imagining themselves special instruments of th….

A marriage is likely to be called happy if neither party ever expected to get much happiness out of it..

Ignore fact and reason, live entirely in the world of your own fantastic and myth-producing passions; do this whole-heartedly and with conviction, an….

Mathematics rightly viewed possesses not only truth but supreme beauty..

This, however, is a passing nightmare; in time the earth will become again incapable of supporting life, and peace will return..

A process which led from the amoeba to man appeared to the philosophers to be obviously a progress though whether the amoeba would agree with this op….

To teach how to live without certainty and yet without being paralysed by hesitation is perhaps the chief thing that philosophy, in our age, can do f….

Love and knowledge led upwards to the heavens..

The essence of education is that it is a change effected in the organism to satisfy the operator..

A life devoted to science is therefore a happy life, and its happiness is derived from the very best sources that are open to dwellers on this troubl….

There can't be a practical reason for believing something that is not true..