In so far only as men live in obedience to reason, do they always necessarily agree in nature.
 Baruch Spinoza, Ethics (1677). copy citation

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Author Baruch Spinoza
Source Ethics
Topic obedience reason
Date 1677
Language English
Reference
Note Translated by R. H. M. Elwes
Weblink http://www.gutenberg.org/files/3800/3800-h/3800-h.htm

Context

“Hence the one man will be affected with pleasure, the other will be affected with pain, and thus they will be at variance one with another. We can easily show in like manner, that all other causes of hatred depend solely on differences, and not on the agreement between men's natures. PROP. XXXV. In so far only as men live in obedience to reason, do they always necessarily agree in nature. Proof.—In so far as men are assailed by emotions that are passions, they can be different in nature (IV. xxxiii.) , and at variance one with another. But men are only said to be active, in so far as they act in obedience to reason” source