Ecclesiastes 10:2

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

Proverbs 14:8

The wisdom of the prudent is to discern his way; but the folly of the foolish is deceit.

Proverbs 17:16

To what purpose is there a price in the hand of a fool to get wisdom, seeing he hath no sense?

Ecclesiastes 9:10

Whatever thy hand findeth to do, do with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in Sheol, whither thou goest.

Ecclesiastes 10:10

If the iron be blunt, and one do not whet the edge, then must he apply more strength; but wisdom is profitable to give success.

Ecclesiastes 10:14

And the fool multiplieth words: yet man knoweth not what shall be; and what shall be after him, who will tell him?

Luke 12:18-20

And he said, This will I do: I will take away my granaries and build greater, and there I will lay up all my produce and my good things;

Luke 14:28-32

For which of you, desirous of building a tower, does not first sit down and count the cost, if he have what is needed 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 iron be blunt, and one do not whet the edge, then must he apply more strength; but wisdom is profitable to give success.
Proverbs 17:16
To what purpose is there a price in the hand of a fool to get wisdom, seeing he hath no sense?
Luke 12:18
And he said, This will I do: I will take away my granaries and build greater, and there I will lay up all my produce and my good things;

General references

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