I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend. Thomas Jefferson
Self-complacency is pleasure accompanied by the idea of oneself as cause. Baruch Spinoza
Social economic problems do not exist everywhere that an economic event plays a role as cause or effect - since problems arise only where the significance of those factors is problematical and can be precisely determined only through the application of methods of social-economics. Max Weber
As cause of any particular evaluation of. Gisela Bleibtreu-Ehrenberg
The Greeks saw everything in forms which we are trying to ascertain as law, and classify as cause. Margaret Fuller