And I set my mind to know [practical] wisdom and to discern [the character of] madness and folly [in which men seem to find satisfaction]; I realized that this too is a futile grasping and chasing after the wind.

He has made everything beautiful and appropriate in its time. He has also planted eternity [a sense of divine purpose] in the human heart [a mysterious longing which nothing under the sun can satisfy, except God]—yet man cannot find out (comprehend, grasp) what God has done (His overall plan) from the beginning to the end.

Behold, here is what I have seen to be good and fitting: to eat and drink, and to find enjoyment in all the labor in which he labors under the sun during the few days of his life which God gives him—for this is his [allotted] reward.

In the day of prosperity be joyful,
But in the day of adversity consider that
God has made the one as well as the other,
So that man will not find out anything that will be after him.

Whatever has been is far off, deeply remote and exceedingly mysterious. Who can discover it [for it is beyond the grasp of man]?

And I discovered that [of all irrational sins none has been so destructive in beguiling one away from God as immoral women for] more bitter than death is the woman whose heart is [composed of] snares and nets, and whose hands are chains. Whoever pleases God will escape from her, but the sinner will be taken captive by her [evil].

“Behold, I have discovered this,” says the Preacher, “while adding one thing to another to find an explanation,

which I am still seeking but have not found. I have found one man among a thousand [who pleases God], but I have not found [such] a woman among all these [a thousand in my harem].

Behold, I have found only this [as a reason]: God made man upright and uncorrupted, but they [both men and women] have sought out many devices [for evil].”

and I saw all the work of God, I concluded that man cannot discover the work that is done under the sun. Even though man may labor in seeking, he will not discover; and [more than that], though a wise man thinks and claims he knows, he will not be able to find it out.

But there was found in it a poor wise man, and by his wisdom he rescued the city. Yet no man [seriously] remembered that poor man.

Cast your bread on the surface of the waters, [be diligently active, make thoughtful decisions], for you will find it after many days.