Happiness Comes From Theperfect Practice Of Virtue.

If We State The Function Of Man To Be A Certain Kind Of Life, And This To Be An Activity Or Actions Of The Soul Implying A Rational Principle, And The Function Of A Good Man To Be The Good And Noble Performance Of These, And If Any Action Is Well Performed When It Is Performed In Accordance With The Appropriate Excellence Human Good Turns Out To Be Activity Of The Soul In Accordance With Virtue, And If There Are More Than One Virtue, In Accordance With The Best And Most Complete.

Humor Is The Only Test Of Gravity, And Gravity Of Humor; For A Subject Which Will Not Bear Raillery Is Suspicious, And A Jest Which Will Not Bear Serious Examination Is False Wit.

The Same Thing May Have All The Kinds Of Causes, E.g. The Moving Cause Of A House Is The Art Or The Builder, The Final Cause Is The Function It Fulfils, The Matter Is Earth And Stones, And The Form Is The Definitory Formula.

If The Art Of Ship-building Were In The Wood, Ships Would Exist By Nature.

. . . Political Society Exists For The Sake Of Noble Actions, And Not Of Mere Companionship.