I Feign No Hypotheses.

Pontus, Instituted Among All People, As An Addition Or Corollary Of Devotion Towards God, That Festival Days And Assemblies Should Be Celebrated To Them Who Had Contended For The Faith (that Is, To Lie Martyrs ).

Our Design, Not Respecting Arts, But Philosophy, And Our Subject, Not Manual, But Natural Powers, We Consider Chiefly Those Things Which Relate To Gravity, Levity, Elastic Force, The Resistance Of Fluids, And The Like Forces, Whether Attractive Or Impulsive; And Therefore We Offer This Work As Mathematical Principles Of Philosophy; For All The Difficulty Of Philosophy Seems To Consist In This From The Phenomena Of Motions To Investigate The Forces Of Nature, And Then From These Forces To Demonstrate The Other Phenomena.

I Do Not Define Time, Space, Place, And Motion, As Being Well Known To All. Only I Must Observe, That The Common People Conceive Those Quantities Under No Other Notions But From The Relation They Bear To Sensible Objects. And Thence Arise Certain Prejudices, For The Removing Of Which It Will Be Convenient To Distinguish Them Into Absolute And Relative, True And Apparent, Mathematical And Common.

There Are More Sure Marks Of Authenticity In The Bible Than In Any Profane History.

I Am Ashamed To Tell You To How Many Figures I Carried These Calculations [of Pi], Having No Other Business At The Time