And I applied my heart to seek and to search out by wisdom concerning all that is done under heaven: it is a sore travail that God hath given to the sons of men to be exercised therewith.
in the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.
I turned about, and my heart was set to know and to search out, and to seek wisdom and the reason of things, and to know that wickedness is folly, and that foolishness is madness:
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man hath power over another to his hurt.
For to the man that pleaseth him God giveth wisdom, and knowledge, and joy: but to the sinner he giveth travail, to gather and to heap up, that he may give to him that pleaseth God. This also is vanity and a striving after wind.
He hath made every thing beautiful in its time: also he hath set the world in their heart, yet so that man cannot find out the work that God hath done from the beginning even to the end.
There is one that is alone, and he hath not a second; yea, he hath neither son nor brother; yet is there no end of all his labour, neither are his eyes satisfied with riches. For whom then, saith he, do I labour, and deprive my soul of good? This also is vanity, yea, it is a sore travail.
As thou knowest not what is the way of the wind, nor how the bones do grow in the womb of her that is with child; even so thou knowest not the work of God who doeth all.