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He that uses words without any clear and steady meaning, what does he but lead himself and others into errors? And he that designedly does it, ought to be looked on as an enemy to truth and knowledge.

— John Locke An Essay Concerning Human Understanding (1689)

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More quotes by John Locke

There cannot any one moral Rule be propos'd, whereof a Man may not justly demand a Reason.

An Essay Concerning Human Understanding (1689)

New opinions are always suspected, and usually opposed, without any other reason but because they are not already common.

An Essay Concerning Human Understanding (1689)

Freedom of Nature is, to be under no other restraint but the Law of Nature.

Two Treatises of Government (1689)

To love truth for truth's sake is the principal part of human perfection in this world, and the seed-plot of all other virtues.

It is one thing to show a man that he is in error, and another to put him in possession of the truth.

An Essay Concerning Human Understanding (1689)

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