From Such Crooked Wood As

Enlightenment Is Man's Leaving His Self-caused Immaturity. Immaturity Is The Incapacity To Use One's Intelligence Without The Guidance Of Another. Such Immaturity Is Self-caused If It Is Not Caused By Lack Of Intelligence, But By Lack Of Determination And Courage To Use One's Intelligence Without Being Guided By Another. Sapere Aude! Have The Courage To Use Your Own Intelligence! Is Therefore The Motto Of The Enlightenment.

With Men, The State Of Nature Is Not A State Of Peace, But War.

Duty Is The Necessity To Act Out Of Reverence For The Law.

Two Things Awe Me Most, The Starry Sky Above Me And The Moral Law Within Me.

Even A Man's Exact Imitation Of The Song Of The Nightingale Displeases Us When We Discover That It Is A Mimicry, And Not The Nightingale.