Everything That Is Possible Demands To Exist.

...a Distinction Must Be Made Between True And False Ideas, And That Too Much Rein Must Not Be Given To A Man's Imagination Under Pretext Of Its Being A Clear And Distinct Intellection.

There Are Two Famous Labyrinths Where Our Reason Very Often Goes Astray. One Concerns The Great Question Of The Free And The Necessary, Above All In The Production And The Origin Of Evil. The Other Consists In The Discussion Of Continuity, And Of The Indivisibles Which Appear To Be The Elements Thereof, And Where The Consideration Of The Infinite Must Enter In.

I Am So In Favor Of The Actual Infinite That Instead Of Admitting That Nature Abhors It, As Is Commonly Said, I Hold That Nature Makes Frequent Use Of It Everywhere, In Order To Show More Effectively The Perfections Of Its Author.

It Is Necessary To Believe That The Mixture Of Evil Has Produced The Greatest Possible Good: Otherwise The Evil Would Not Have Been Permitted.

If We Were Magically Shrunk And Put Into Someone's Brain While She Was Thinking, We Would See All The Pumps, Pistons, Gears And Levers Working Away And We Would Be Able To Describe The Workings Completely, In Mechanical Terms, Thereby Completely Describing The Thought Processes Of The Brain. But That Description Would Not Contain Any Mention Of Thought! It Would Contain Nothing But Descriptions Of Pumps, Pistons, Levers!