Let Me Think... I Wonder If An

The Qualities Of Bodies, Which Admit Neither Intension Nor Remission Of Degrees, And Which Are Found To Belong To Fill Bodies Within The Reach Of Our Experiments, Are To Be Esteemed The Universal Qualities Of All Bodies Whatsoever.

What Descartes Did Was A Good Step. You Have Added Much Several Ways, And Especially In Taking The Colours Of Thin Plates Into Philosophical Consideration. If I Have Seen A Little Further It Is By Standing On The Shoulders Of Giants.

The Main Business Of Natural Philosophy Is To Argue From Phænomena Without Feigning Hypotheses, And To Deduce Causes From Effects Till We Come To The Very First Cause, Which Certainly Is Not Mechanical; And Not Only To Unfold The Mechanism Of The World, But Chiefly To Resolve These, And To Such Like Questions.

From What Has Been Said It Is Also Evident, That The Whiteness Of The Sun's Light Is Compounded All The Colours Wherewith The Several Sorts Of Rays Whereof That Light Consists, When By Their Several Refrangibilities They Are Separated From One Another, Do Tinge Paper Or Any Other White Body Whereon They Fall. For Those Colours ... Are Unchangeable, And Whenever All Those Rays With Those Their Colours Are Mix'd Again, They Reproduce The Same White Light As Before.

It Is Indeed A Matter Of Great Difficulty To Discover, And Effectually To Distinguish, The True Motions Of Particular Bodies From The Apparent; Because The Parts Of That Immovable Space, In Which Those Motions Are Performed, Do By No Means Come Under The Observation Of Our Senses. Yet The Thing Is Not Altogether Desperate; For We Have Some Arguments To Guide Us, Partly From The Apparent Motions, Which Are The Differences Of The True Motions; Partly From The Forces, Which Are The Causes And Effects Of The True Motions.