12 So I turned to consider wisdom and madness and folly. For what can the man do who comes after the king? Only what has already been done. 13 Then I saw that there is more gain in wisdom than in folly, as there is more gain in light than in darkness. 14 The wise person has his eyes in his head, but the fool walks in darkness. And yet I perceived that the same event happens to all of them. 15 Then I said in my heart, “What happens to the fool will happen to me also. Why then have I been so very wise?” And I said in my heart that this also is vanity. 16 For of the wise as of the fool there is no enduring remembrance, seeing that in the days to come all will have been long forgotten. How the wise dies just like the fool! 17 So I hated life, because what is done under the sun was grievous to me, for all is vanity and a striving after wind. (ESV)
11:1 Cast your bread upon the waters,
for you will find it after many days.
2 Give a portion to seven, or even to eight,
for you know not what disaster may happen on earth.
3 If the clouds are full of rain,
they empty themselves on the earth,
and if a tree falls to the south or to the north,
in the place where the tree falls, there it will lie.
4 He who observes the wind will not sow,
and he who regards the clouds will not reap.
5 As you do not know the way the spirit comes to the bones in the womb of a woman with child, so you do not know the work of God who makes everything.
6 In the morning sow your seed, and at evening withhold not your hand, for you do not know which will prosper, this or that, or whether both alike will be good. (ESV)