Nothing Comes Out Of Nothing.

The Two Operations Of Our Understanding, Intuition And Deduction, On Which Alone We Have Said We Must Rely In The Acquisition Of Knowledge.

So Blind Is The Curiosity By Which Mortals Are Possessed, That They Often Conduct Their Minds Along Unexplored Routes, Having No Reason To Hope For Success, But Merely Being Willing To Risk The Experiment Of Finding Whether The Truth They Seek Lies There.

Neither The True Nor The False Roots Are Always Real; Sometimes They Are Imaginary; That Is, While We Can Always Imagine As Many Roots For Each Equation As I Have Assigned, Yet There Is Not Always A Definite Quantity Corresponding To Each Root We Have Imagined.

In God There Is An Infinitude Of Things Which I Cannot Comprehend, Nor Possibly Even Reach In Any Way By Thought; For It Is The Nature Of The Infinite That My Nature, Which Is Finite And Limited, Should Not Comprehend It.

How Do We Know That Anything Really Exists, That Anything Is Really The Way It Seems Ot Us Through Our Senses?