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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.

Sigmund Freud, Scientific Literature Corporation (1961). “The standard edition of the complete psychological works of Sigmund Freud”
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.