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The public use of a man's reason must be free at all times, and this alone can bring enlightenment among men...

— Immanuel Kant What is Enlightenment? (1784)

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More quotes by Immanuel Kant

Morality is not properly the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.

Critique of Practical Reason (1788)

Apart from moral conduct, all that man thinks himself able to do in order to become acceptable to God is mere superstition and religious folly.

There must be a seed of every good thing in the character of men, otherwise no one can bring it out.

The Educational Theory of Immanuel Kant (1904)

Natural science is throughout either a pure or an applied doctrine of motion.

Metaphysical Foundations of Natural Science (1786)

That all our knowledge begins with experience there can be no doubt.

Critique of Pure Reason (1781)

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