Love is a state of temporary psychosis.

The game replaces sexual enjoyment by pleasure in movement.

Long ago man formed an ideal conception of omnipotence and omniscience which he embodied in his gods. Whatever seemed unattainable to his desires - or forbidden to him - he attributed to these gods... Now he has himself approached very near to realizing this ideal, he has nearly become a god himself.

The communal life of human beings had . . . a two-fold foundation: the compulsion to work, which was created by external necessity, and the power of love.

When one does not have what one wants, one must want what one has.

One... gets an impression that civilization is something which was imposed on a resisting majority by a minority which understood how to obtain possession of the means to power and coercion. It is, of course, natural to assume that these difficulties are not inherent in the nature of civilization itself but are determined by the imperfections of the cultural forms which have so far been developed.

The more the fruits of knowledge become accessible to men, the more widespread is the decline of religious belief.