Ecclesiastes 10:2

A wise man's heart is at his right hand, but a fool's heart at his left.

Proverbs 14:8

The wisdom of the prudent is to think about his way, but the folly of fools is deceit.

Proverbs 17:16

Why is there money in the hand of a fool to buy wisdom, since he has no understanding?

Ecclesiastes 9:10

Whatever your hand finds to do, do it with your might; for there is no work, nor device, nor knowledge, nor wisdom, in Sheol, where you are going.

Ecclesiastes 10:10

If the axe is blunt, and one doesn't sharpen the edge, then he must use more strength; but skill brings success.

Ecclesiastes 10:14

A fool also multiplies words. Man doesn't know what will be; and that which will be after him, who can tell him?

Luke 12:18-20

He said, 'This is what I will do. I will pull down my barns, and build bigger ones, and there I will store all my grain and my goods.

Luke 14:28-32

For which of you, desiring to build a tower, doesn't first sit down and count the cost, to see if he has enough to complete it?

Treasury of Scripture Knowledge

Summary

A wise man's heart is at his right hand; but a fool's heart at his left.

General references

Bible References

But

Ecclesiastes 10:10
If the axe is blunt, and one doesn't sharpen the edge, then he must use more strength; but skill brings success.
Proverbs 17:16
Why is there money in the hand of a fool to buy wisdom, since he has no understanding?
Luke 12:18
He said, 'This is what I will do. I will pull down my barns, and build bigger ones, and there I will store all my grain and my goods.

General references

1 Kings 12:8
But he forsook the counsel of the old men which they had given him, and took counsel with the young men who had grown up with him, who stood before him.