Mathematics Is A More Powerful Instrument Of

Whatever I Have Up Till Now Accepted As Most True And Assured I Have Gotten Either From The Senses Or Through The Senses. But From Time To Time I Have Found That The Senses Deceive, And It Is Prudent Never To Trust Completely Those Who Have Deceived Us Even Once.

Bad Books Engender Bad Habits, But Bad Habits Engender Good Books.

There Is A Great Difference Between Mind And Body Insomuch As Body Is By Nature Always Divisible, And The Mind Is Entirely Indivisible.

Sensations Are Nothing But Confused Modes Of Thinking.

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.