It Is Best Not To Go On

The First Precept Was Never To Accept A Thing As True Until I Knew It As Such Without A Single Doubt.

Everything Is Self-evident.

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.

[about Pierre De Fermat] It Cannot Be Denied That He Has Had Many Exceptional Ideas, And That He Is A Highly Intelligent Man. For My Part, However, I Have Always Been Taught To Take A Broad Overview Of Things, In Order To Be Able To Deduce From Them General Rules, Which Might Be Applicable Elsewhere.

Everybody Thinks Himself So Well Supplied With Common Sense That Even Those Most Difficult To Please. . . Never Desire More Of It Than They Already Have.