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I doubt not, but from self-evident Propositions, by necessary Consequences, as incontestable as those in Mathematics, the measures of right and wrong might be made out.

— John Locke An Essay Concerning Human Understanding (1689)

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Mathematics

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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Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist.

Kenneth Boulding to Kenneth Boulding in: United States. Congress. House (1973)

If the doors of perception were cleansed, everything would appear to man as it is: infinite.

William Blake The Marriage of Heaven and Hell (1790)

Pure mathematics consists entirely of assertions to the effect that, if such and such a proposition is true of anything, then such and such another proposition is true of that thing.

Bertrand Russell

The land of easy mathematics where he who works adds up and he who retires subtracts.

Núria Añó

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