Why would a foolish man try to buy wisdom from another man? If he is a fool and not wise, he will not know whether or not the advice is good anyways. If you are afraid you are not being wise or that you are a fool, there is a remedy: reading Proverbs. The book of Proverbs is filled with wisdom. If you have children, read it to them before they go sleep. Teach others and yourself to value wisdom. It is one thing to not be wise but value wisdom and seek it, if that is the case you will eventually become wise. It is much worse to not care for wisdom or even to choose to stay unwise. The Bible also says that we can pray for wisdom, so go ahead and ask God for some wisdom whenever you need it!
Now we have received, not the spirit of the world, but The Spirit Who is from God, so that we may know the things freely given to us by God, which things we also speak, not in words taught by human wisdom, but in those taught by The Spirit, combining spiritual thoughts with spiritual words. But a natural man does not accept the things of The Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.
And we pray:
Lord God, You are The God of Wisdom and Truth. You are ALL Wisdom and Created it. Lord, make me wise – Amen. You have set responsibilities before me, and I want to do them well, so I ask that You give me wisdom on how to complete the task the best I can. You know me. You know the gifts You have blessed me with. I know that You can never have too much wisdom, so make me wise. And always keep me humble because I do not want to be wise and proud. I come to You in Jesus’ name. Amen.