The wisdom of a discerning man is to understand his way. And the imprudence of the foolish is to be wandering astray
Other versions
King James Version
The wisdom of the prudent is to understand his way: but the folly of fools isEnglish Standard Version
The wisdom of the prudent is to discern his way, but the folly of fools is deceiving.New International Version
The wisdom of the prudent is to give thought to their ways, but the folly of fools is deception.