American Standard Version
A fool hath no delight in understanding, But only that his heart may reveal itself.

Berean Study Bible
A fool does not delight in understanding, but only in airing his opinions.

Douay-Rheims Bible
A fool receiveth not the words of prudence: unless thou say those things which are in his heart.

English Revised Version
A fool hath no delight in understanding, but only that his heart may reveal itself.

King James Bible
A fool hath no delight in understanding, but that his heart may discover itself.

World English Bible
A fool has no delight in understanding, but only in revealing his own opinion.

Young's Literal Translation
A fool delighteth not in understanding, But -- in uncovering his heart.

Proverbs 18:2 Additional Translations ...