There Is Nothing Higher Than Reason.

Is It Reasonable To Assume A Purposiveness In All The Parts Of Nature And To Deny It To The Whole?

He Who Is Cruel To Animals Becomes Hard Also In His Dealings With Men. We Can Judge The Heart Of A Man By His Treatment Of Animals.

[s]uppose The Mind Of [a] Friend Of Humanity Were Clouded Over With His Own Grief, Extinguishing All Sympathetic Participation In The Fate Of Others; He Still Has The Resources To Be Beneficent To Those Suffering Distress, But The Distress Of Others Does Not Touch Him Because He Is Sufficiently Busy With His Own; And Now, Where No Inclination Any Longer Stimulates Him To It, He Tears Himself Out Of His Deadly Insensibility And Does The Action Without Any Inclination, Solely From Duty.

All Our Knowledge Falls With The Bounds Of Experience.

Enlightenment Is The Liberation Of Man From His Self-caused State Of Minority... Supere Aude! Dare To Use Your Own Understanding!is Thus The Motto Of The Enlightenment.