There Is Nothing Without Reason.

For Things Remain Possible, Even If God Does Not Choose Them. Indeed, Even If God Does Not Will Something To Exist, It Is Possible For It To Exist, Since, By Its Nature, It Could Exist If God Were To Will It To Exist.

Now Where There Are No Parts, There Neither Extension, Nor Shape, Nor Divisibility Is Possible. And These Monads Are The True Atoms Of Nature And, In A Word, The Elements Of Things.

I Agree With You That It Is Important To Examine Our Presuppositions, Throughly And Once For All, In Order To Establish Something Solid. For I Hold That It Is Only When We Can Prove All That We Bring Forward That We Perfectly Understand The Thing Under Consideration. I Know That The Common Herd Takes Little Pleasure In These Researches, But I Know Also That The Common Herd Take Little Pains Thoroughly To Understand Things.

Music Is A Secret And Unconscious Mathematical Problem Of The Soul.

The Monad, Of Which We Shall Speak Here, Is Nothing But A Simple Substance Which Enters Into Compounds; Simple, That Is To Say, Without Parts.