Ingratitude Is The Essence Of Vileness.

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.

By A Lie A Man Throws Away And, As It Were, Annihilates His Dignity As A Man. A Man Who Himself Does Not Believe What He Tells Another ... Has Even Less Worth Than If He Were A Mere Thing. ... Makes Himself A Mere Deceptive Appearance Of Man, Not Man Himself.

Two Things Strike Me Dumb: The Infinite Starry Heavens, And The Sense Of Right And Wrong In Man.

The Wise Man Can Change His Mind; The Stubborn One, Never.

Physicians Think They Do A Lot For A Patient When They Give His Disease A Name.