All things are full of weariness; man may not give their story: the eye has never enough of its seeing, or the ear of its hearing.

That which is bent may not be made straight, and that which is not there may not be numbered.

Let not your mouth make your flesh do evil. And say not before the angel, It was an error. So that God may not be angry with your words and put an end to the work of your hands.

In the day of wealth have joy, but in the day of evil take thought: God has put the one against the other, so that man may not be certain what will be after him.

Then I saw all the work of God, and that man may not get knowledge of the work which is done under the sun; because, if a man gives hard work to the search he will not get knowledge, and even if the wise man seems to be coming to the end of his search, still he will be without knowledge.

All this I took to heart, and my heart saw it all: that the upright and the wise and their works are in the hand of God; and men may not be certain if it will be love or hate; all is to no purpose before them.