For The Rays, To Speak Properly, Have

We Are Not To Consider The World As The Body Of God: He Is An Uniform Being, Void Of Organs, Members, Or Parts; And They Are His Creatures, Subordinate To Him, And Subservient To His Will.

As A Blind Man Has No Idea Of Colors, So We Have No Idea Of The Manner By Which The All-wise God Perceives And Understands All Things.

We Are To Admit No More Causes Of Natural Things Than Such As Are Both True And Sufficient To Explain Their Appearances.

The Changing Of Bodies Into Light, And Light Into Bodies, Is Very Conformable To The Course Of Nature, Which Seems Delighted With Transmutations.

[1.] And First I Suppose That There Is Diffused Through All Places An Aethereal Substance Capable Of Contraction & Dilatation, Strongly Elastick, & In A Word, Much Like Air In All Respects, But Far More Subtile. 2. I Suppose This Aether Pervades All Gross Bodies, But Yet So As To Stand Rarer In Their Pores Then In Free Spaces, & So Much Ye Rarer As Their Pores Are Less ... 3. I Suppose Ye Rarer Aether Within Bodies & Ye Denser Without Them, Not To Be Terminated In A Mathematical Superficies, But To Grow Gradually Into One Another.