Ecclesiastes 2:15

Then I said in my heart, As it happens to the fool, so it happens even to me; and why was I then more wise? And I said in my heart that this also is vanity.

Ecclesiastes 6:8

For what has the wise more than the fool? What gain has the poor who knows how to walk before the living?

1 Kings 3:12

behold, I have done according to your words. Lo, I have given you a wise and an understanding heart, so that there was none like you before you, and after you none shall arise like you.

Ecclesiastes 1:2

Vanity of vanities, says the preacher, vanity of vanities! All is vanity.

Ecclesiastes 1:14

I have seen all the works that are done under the sun; and, behold, all is vanity and vexation of spirit.

Ecclesiastes 1:16

I spoke within my own heart, saying, Lo, I have become great and have gathered more wisdom than all that have been before me in Jerusalem; yea, my heart has seen much of wisdom and knowledge.

Ecclesiastes 1:18-1

For in much wisdom is much grief; and he who increases knowledge increases sorrow.

Ecclesiastes 2:16

For there is no memory of the wise more than of the fool forever, since that which is now shall all be forgotten in the days to come. And how does the wise die above the fool!

Treasury of Scripture Knowledge

Summary

Then said I in my heart, As it happeneth to the fool, so it happeneth even to me; and why was I then more wise? Then I said in my heart, that this also is vanity.

General references

Bible References

And why

Ecclesiastes 1:16
I spoke within my own heart, saying, Lo, I have become great and have gathered more wisdom than all that have been before me in Jerusalem; yea, my heart has seen much of wisdom and knowledge.
1 Kings 3:12
behold, I have done according to your words. Lo, I have given you a wise and an understanding heart, so that there was none like you before you, and after you none shall arise like you.

Then i

Ecclesiastes 2:1
I said in my heart, Come now, I will test you with mirth; therefore consider and behold goodness; this also is vanity.
Ecclesiastes 1:2
Vanity of vanities, says the preacher, vanity of vanities! All is vanity.

General references

Ecclesiastes 1:2
Vanity of vanities, says the preacher, vanity of vanities! All is vanity.