Ecclesiastes 10:2
A wise man’s heart turns him toward the right [which is the way of blessing], but a fool’s heart turns him toward the left [which is the way of condemnation].
Proverbs 14:8
The wisdom of the sensible is to understand his way,
But the foolishness of [shortsighted] fools is deceit.
Proverbs 17:16
Why is there money in the hand of a fool to buy wisdom,
When he has no common sense or even a heart for it?
Ecclesiastes 9:10
Whatever your hand finds to do, do it with all your might; for there is no activity or planning or knowledge or wisdom in Sheol (the nether world, the place of the dead) where you are going.
Ecclesiastes 10:10
If the axe is dull and he does not sharpen its edge, then he must exert more strength; but wisdom [to sharpen the axe] helps him succeed [with less effort].
Ecclesiastes 10:14
Yet the fool multiplies words, though no man knows what will happen, and who can tell him what will come after he is gone?
Luke 12:18-20
Luke 14:28-32
Treasury of Scripture Knowledge
Summary
General references
Bible References
But
Why is there money in the hand of a fool to buy wisdom,
When he has no common sense or even a heart for it?