Conquer Yourself Rather Than The World.

Nothing Comes Out Of Nothing.

This Result Could Have Been Achieved Either By His [god] Endowing My Intellect With A Clear And Distinct Perception Of Everything About Which I Would Ever Deliberate, Or Simply By Impressing The Following Rule So Firmly Upon My Memory That I Could Never Forget It: I Should Never Judge Anything That I Do Not Clearly And Distinctly Understand.

Science Is Practical Philosophy.

Just As We Believe By Faith That The Greatest Happiness Of The Next Life Consists Simply In The Contemplation Of This Divine Majesty, Likewise We Experience That We Derive The Greatest Joy Of Which We Are Capable In This Life From The Same Contemplation, Even Though It Is Much Less Perfect.

I Can Doubt Everything, Except One Thing, And That Is The Very Fact That I Doubt. Simply Put - I Think, Therefore I Am