New Living Translation
An empty-headed person won’t become wise any more than a wild donkey can bear a human child.

American Standard Version
But vain man is void of understanding, Yea, man is born as a wild ass's colt.

Berean Study Bible
But a witless man can no more become wise than the colt of a wild donkey can be born a man!

Douay-Rheims Bible
A vain man is lifted up into pride, and thinketh himself born free like a wild ass's colt.

English Revised Version
But vain man is void of understanding, yea, man is born as a wild ass's colt.

King James Bible
For vain man would be wise, though man be born like a wild ass's colt.

World English Bible
An empty-headed man becomes wise when a man is born as a wild donkey's colt.

Young's Literal Translation
And empty man is bold, And the colt of a wild ass man is born.

Job 11:12 Additional Translations ...