Science Is Practical Philosophy.

The Reading Of All Good Books Is Indeed Like A Conversation With The Noblest Men Of Past Centuries Who Were The Authors Of Them, Nay A Carefully Studied Conversation, In Which They Reveal To Us None But The Best Of Their Thoughts.

I Have Concluded The Evident Existence Of God, And That My Existence Depends Entirely On God In All The Moments Of My Life, That I Do Not Think That The Human Spirit May Know Anything With Greater Evidence And Certitude.

The Principal Effect Of The Passions Is That They Incite And Persuade The Mind To Will The Events For Which They Prepared The Body.

As I Considered The Matter Carefully It Gradually Came To Light That All Those Matters Only Were Referred To Mathematics In Which Order And Measurements Are Investigated, And That It Makes No Difference Whether It Be In Numbers, Figures, Stars, Sounds Or Any Other Object That The Question Of Measurement Arises. I Saw Consequently That There Must Be Some General Science To Explain That Element As A Whole Which Gives Rise To Problems About Order And Measurement, Restricted As These Are To No Special Subject Matter. This, I Perceived Was Called 'universal Mathematics'.

Some Years Ago I Was Struck By The Large Number Of Falsehoods That I Had Accepted As True In My Childhood, And By The Highly Doubtful Nature Of The Whole Edifice That I Had Subsequently Based On Them. I Realized That It Was Necessary, Once In The Course Of My Life, To Demolish Everything Completely And Start Again Right From The Foundations If I Wanted To Establish Anything At All In The Sciences That Was Stable And Likely To Last.