All the rivers run into the sea; yet the sea is not full; unto the place from whence the rivers come, thither they return again.

I spoke with my heart, saying, “Behold, I have acquired great [human] wisdom and experience, more than all who were over Jerusalem before me; and my mind has observed a wealth of [moral] wisdom and [scientific] knowledge.”

I made me pools of water, - to irrigate therefrom the thick-set saplings growing up into trees:

Who really knows if the human spirit ascends upward, and the animal's spirit descends into the earth?

and, as better than both, him who had not yet come into being, - who had not seen the vexatious work, which was done under the sun.

As for the people that have been before him, and that come after him, they are innumerable: yet is not their joy the greater through him. This is also a vain thing and a vexation of mind. (v17) When thou comest into the house of God, keep thy foot and draw nigh, that thou mayest hear: that is better than the offerings of fools, for they know not what evil they do

When you take an oath before God, put it quickly into effect, because he has no pleasure in the foolish; keep the oath you have taken.

Do not let your mouth lead your flesh into sin, and do not tell the messenger that it [was] a mistake. Why anger God at your words, so that he destroys the work of your hands?

As he came into the world, naked shall he return to go as he came, and shall take nothing of his labor, which he may carry away in his hand.

for the miscarriage comes in futility (in vain) and passes into obscurity; and its name is covered in obscurity.

It is better to go into a house of mourning, than into a banquet house: For there is the end of all men, and he that is living taketh it to heart.

Surely, the practice of extortion turns a wise person into a fool,
and a bribe destroys the mind.

I turned around and directed my heart to know, to investigate and to seek [skillful and godly] wisdom and the reason for things, and to know that wickedness is folly and that foolishness is madness [leading to stupidity and recklessness].

He that diggeth a pit shall fall into it; and whoso breaketh an hedge, a serpent shall bite him.

Someone who quarries stone might be injured; someone splitting logs can fall into danger.

The toil of dullards, shall weary a man, that he knoweth not how to go into the city.

When no work is done the roof goes in, and when the hands do nothing water comes into the house.

Apportion what you have into seven, or even eight parts, because you don't know what disaster might befall the land.

In the morning put your seed into the earth, and till the evening let not your hand be at rest; because you are not certain which will do well, this or that--or if the two will be equally good.

Rejoice, O young man, in thy youth; and let thy heart cheer thee in the days of thy youth, and walk in the ways of thine heart, and in the sight of thine eyes: but know thou, that for all these things God will bring thee into judgment.

before the silver cord is snapped,
and the gold bowl is broken,
and the jar is shattered at the spring,
and the wheel is broken into the well;

For God shall bring every work into judgment, with every secret thing, whether it be good, or whether it be evil.