Notion Without Intuition Is Empty, Intuition Without

Every Human Being Should Always Be Treated As An End And Never As A Mere Instrument.

Enlightenment Is Man's Emergence From His Self-imposed Nonage. Nonage Is The Inability To Use One's Own Understanding Without Another's Guidance. This Nonage Is Self-imposed If Its Cause Lies Not In Lack Of Understanding But In Indecision And Lack Of Courage To Use One's Own Mind Without Another's Guidance. Dare To Know!

Morality Is Not Properly The Doctrine Of How We May Make Ourselves Happy, But How We May Make Ourselves Worthy Of Happiness.

Prudence Reproaches; Conscience Accuses.

The Evil Effect Of Science Upon Men Is Principally This, That By Far The Greatest Number Of Those Who Wish To Display A Knowledge Of It Accomplish No Improvement At All Of The Understanding, But Only A Perversity Of It, Not To Mention That It Serves Most Of Them As A Tool Of Vanity.