Ecclesiastes 1:13

I applied my mind to study and to explore by wisdom all that is done under the heavens. What a heavy burden God has laid on the human race!

Ecclesiastes 1:7

All streams flow into the sea, yet the sea is never full. To the place the streams come from, there they return again.

Ecclesiastes 9:10

Whatever your hand finds to do, do it with all your might, for in the realm of the dead, where you are going, there is neither working nor planning nor knowledge nor wisdom.

Ecclesiastes 12:1

Remember your Creator in the days of your youth, before the days of trouble come and the years approach when you will say, "I find no pleasure in them"

Ecclesiastes 3:4

A time to weep and a time to laugh, a time to mourn and a time to dance

Ecclesiastes 9:5

For the living know that they will die, but the dead know nothing; they have no further reward, and even their name is forgotten.

Ecclesiastes 4:9

Two are better than one, because they have a good return for their labor: