The great question that has never been answered, and which I have not yet been able to answer, despite my thirty years of research into the feminine soul, is What does a woman want? – Sigmund Freud
What we call happiness in the strictest sense comes from the (preferably sudden) satisfaction of needs which have been dammed up to a high degree. – Sigmund Freud
Civilized society is perpetually menaced with disintegration through this primary hostility of men towards one another. – Sigmund Freud
The hypothesis may be put forward, to be tested by the s subsequent investigation, that this development has been in large part a matter of the reciprocal interaction of new factual insights and knowledge on the one hand with changes in the theoretical system on the other. – Talcott Parsons