He Who Has Made Great Moral Progress

In The Kingdom Of Ends Everything Has Either A Price Or A Dignity. Whatever Has A Price Can Be Replaced By Something Else As Its Equivalent; On The Other Hand, Whatever Is Above All Price, And Therefore Admits Of No Equivalent, Has A Dignity. But That Which Constitutes The Condition Under Which Alone Something Can Be An End In Itself Does Not Have Mere Relative Worth, I.e., Price, But An Intrinsic Worth, I.e., A Dignity.

Aus So Krummen Holze, Als Woraus Der Mensch Gemacht Ist, Kann Nichts Ganz Gerades Gezimmert Werden. Out Of The Crooked Timber Of Humanity, No Straight Thing Can Ever Be Made.

Always Regard Every Man As An End In Himself, And Never Use Him Merely As A Means To Your Ends [i.e., Respect That Each Person Has A Life And Purpose That Is Their Own; Do Not Treat People As Objects To Be Exploited].

It Is Not God's Will Merely That We Should Be Happy, But That We Should Make Ourselves Happy

Enthusiasm Is Always Connected With The Senses, Whatever Be The Object That Excites It. The True Strength Of Virtue Is Serenity Of Mind, Combined With A Deliberate And Steadfast Determination To Execute Her Laws. That Is The Healthful Condition Of The Moral Life; On The Other Hand, Enthusiasm, Even When Excited By Representations Of Goodness, Is A Brilliant But Feverish Glow Which Leaves Only Exhaustion And Languor Behind.