Have courage to use your own understanding! — Immanuel Kant

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Have courage to use your own understanding! — Immanuel Kant · Smartyfair

Have courage to use your own understanding!

Immanuel Kant1724–1804 · philosopher · 1700s-1800s GermanyImmanuel Kant was a German philosopher whose ideas about knowledge, morality, and reason reshaped modern philosophy.1 quote

Source foundCourage

In plain words

Be brave enough to think for yourself.

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Where these words come from

How sure this is: 91% sureThese words were traced back to where they first appeared. That source is listed below.
What turned up: From Kant's essay 'Beantwortung der Frage: Was ist Aufklärung?' (An Answer to the Question: What is Enlightenment?), 1784 — the Sapere Aude ('dare to know') line. Wikiquote-sourced with named work.
Work: Beantwortung der Frage: Was ist Aufklärung? (An Answer to the Question: What is Enlightenment?)
Occasion: 1784 · Berlinische Monatsschrift, Prussia · philosophical essay
Sources checked: en.wikiquote.orgChecked using claude-sonnet-5, 21 August 2026Wikiquote Courage theme page, sourced to 'What is Enlightenment?', 1784
sourcebooks.fordham.edu

More on courage

You have power over your mind, not outside events. Realize this, and you will find strength.

Marcus Aurelius

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The early bird catches the worm.English proverb

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Checked using claude-sonnet-5, 21 August 2026

Fordham University's Internet Modern History Sourcebook hosts the full English translation of Kant's 1784 essay 'What is Enlightenment?' — this translation renders the motto 'Have courage to use your own reason!' (translators vary between 'reason' and 'understanding' for the same German original).

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You can't cross the sea merely by standing and staring at the water.