Immanuel KantLife · Work · Legacy

← Glossary

Enlightenment

Opening of the essay “What Is Enlightenment?” in Tieftrunk's edition of Kant's writings (1799)
Image: unbekannt / unknown · Public domain · Wikimedia Commons

“Man's emergence from his self-incurred immaturity” — Kant's famous definition of 1784.

Immaturity is the inability to use one's understanding without another's guidance; it is self-incurred when its cause is not lack of understanding but lack of courage. Hence the motto: Sapere aude!

Kant distinguishes the public use of reason (as a scholar before the reading public — which must always be free) from its private use (in an office — which may be restricted). He calls his era not an enlightened age, but “an age of enlightenment”.

Where it appears

Source: Wikipedia: Enlightenment