With Me, Everything Turns Into Mathematics.

My Third Maxim Was To Try Always To Conquer Myself Rather Than Fortune, And To Change My Desires Rather Than The Order Of The World, And Generally To Accustom Myself To Believing That There Is Nothing Entirely In Our Power Except Our Thoughts, So That After We Have Done Our Best Regarding Things External To Us, Everything In Which We Do Not Succeed Is For Us Absolutely Impossible.

The Greatest Minds Are Capable Of The Greatest Vices As Well As Of The Greatest Virtues.

Because Reason...is The Only Thing That Makes Us Men, And Distinguishes Us From The Beasts, I Would Prefer To Believe That It Exists, In Its Entirety, In Each Of Us.

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.

At Last I Will Devote Myself Sincerely And Without Reservation To The General Demolition Of My Opinions.