The greatest challenge to any thinker is stating the problem in a way that will allow a solution.

To abandon the struggle for private happiness, to expel all eagerness of temporary desire, to burn with passion for eternal things-this is emancipation, and this is the free man's worship... United with his fellow men by the strongest of all ties, the tie of a common doom, the free man finds that a new vision is with him always, shedding over every daily task the light of love.

Without effort and change, human life cannot remain good. It is not a finished Utopia that we ought to desire, but a world where imagination and hope are alive and active.

I do not myself feel that any person who is really profoundly humane can believe in everlasting punishment.

Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.

Drunkenness is temporary suicide.

The use of force stands in need of control by a public neutral authority, in the interests of liberty no less than of justice. Within a nation, this public authority will naturally be the state; in relations between nations, if the present anarchy is to cease, it will have to be some international parliament.