A crown and being crowned are mentioned many times in Solomon’s proverbs. Wisdom is said to present a crown of splendor (4:9). God crowns the head of the righteous with blessings (12:4). The wealth of the wise is their crown (12:24). And here “the prudent are crowned with knowledge”. A crown in ancient society was a symbol of honor and high status in society. A crown was usually passed to a deceased king’s son. The prudent show care and thought about the future (15).
The simple do not inherit a crown. They inherit folly according to this proverb. God’s Word English translates the Hebrew as, “Gullible people are gifted with stupidity, but sensible people are crowned with knowledge.” An inheritance (the better translation) is more than a gift. It is a right. Inheritance refers to the assets that an individual bequeaths to their loved ones after they pass away.
I can see that the difference between the wise and the fool is that the wise plan for the future according to God’s word and ways, whereas the simple expect good things to come their way. This is also true in regard to what happens after our physical body dies. The wise see that eternal life in paradise with God is in the power and decision of God. So they look to what he requires. When asked what is required to inherit eternal life “Jesus looked at them and said, ‘With man this is impossible, but not with God; all things are possible with God.'” (Mark 10:17, 27)