Act So As To Use Humanity, Yourself

Two Things Fill The Mind With Ever-increasing Wonder And Awe, The More Often And The More Intensely The Mind Of Thought Is Drawn To Them: The Starry Heavens Above Me And The Moral Law Within Me... Morality Is Not Properly The Doctrine Of How We May Make Ourselves Happy, But How We May Make Ourselves Worthy Of Happiness.

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].

A Society That Is Not Willing To Demand A Life Of Somebody Who Has Taken Somebody Else’s Life Is Simply Immoral.

If A Man Is Often The Subject Of Conversation He Soon Becomes The Subject Of Criticism.

Upon The Solution Of This Problem, Or Upon Sufficient Proof Of The Impossibility Of Synthetical Knowledge A Priori, Depends The Existence Or Downfall Of Metaphysics.