Where It Is In Our Power To

For Knowing Is Spoken Of In Three Ways: It May Be Either Universal Knowledge Or Knowledge Proper To The Matter In Hand Or Actualising Such Knowledge; Consequently Three Kinds Of Error Also Are Possible.

Why Is It That All Men Who Are Outstanding In Philosophy, Poetry Or The Arts Are Melancholic?

Of Mankind In General, The Parts Are Greater Than The Whole.

Whatever We Learn To Do, We Learn By Actually Doing It; Men Come To Be Builders, For Instance, By Building, And Harp Players By Playing The Harp. In The Same Way, By Doing Just Acts We Come To Be Just; By Doing Self-controlled Acts, We Come To Be Self-controlled ; And By Doing Brave Acts, We Become Brave.

The Soul Has Two Parts, One Rational And The Other Irrational. Let Us Now Similarly Divide The Rational Part, And Let It Be Assumed That There Are Two Rational Faculties, One Whereby We Contemplate Those Things Whose First Principles Are Invariable, And One Whereby We Contemplate Those Things Which Admit Of Variation.