I have resolved to demonstrate by a certain and undoubted course of argument, or to deduce from the very condition of human nature, not what is new and unheard of, but only such things as agree best with practice.
Baruch SpinozaNothing in the universe is contingent, but all things are conditioned to exist and operate in a particular manner by the necessity of the divine nature.
Baruch SpinozaThe greater emotion with which we conceive a loved object to be affected toward us, the greater will be our complacency.
Baruch SpinozaMen who are ruled by reason desire nothing for themselves which they would not wish for all mankind.
Baruch Spinoza