He Who Hasn't Tasted Bitter Things Hasn't

Therefore, I Have Attacted [the Problem Of The Catenary] Which I Had Hitherto Not Attempted, And With My Key [the Differential Calculus] Happily Opened Its Secret. Acta Eruditorum

We Live In The Best Of All Possible Worlds

The Larger The Mass Of Collected Things, The Less Will Be Their Usefulness. Therefore, One Should Not Only Strive To Assemble New Goods From Everywhere, But One Must Endeavor To Put In The Right Order Those That One Already Possesses.

Men Act Like Brutes In So Far As The Sequences Of Their Perceptions Arise Through The Principle Of Memory Only, Like Those Empirical Physicians Who Have Mere Practice Without Theory.

Nihil Est Sine Ratione. There Is Nothing Without A Reason.