Never Undertake Anything Unless You Have The

Man Is To Be Found In Reason, God In The Passions.

Non Cogitant, Ergo Non Sunt.

Knowledge Acquired Too Rapidly And Without Being Personally Supplemented Is Never Very Productive.

Those Who Have Racked Their Brains To Discover New Proofs Have Perhaps Been Induced To Do So By A Compulsion They Could Not Quite Explain To Themselves. Instead Of Giving Us Their New Proofs They Should Have Explained To Us The Motivation That Constrained Them To Search For Them.

It Is In The Gift For Employing All The Vicissitudes Of Life To One's Own Advantage And To That Of One's Craft That A Large Part Of Genius Consists.