KJV:
And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this sore travail hath God given to the sons of man to be exercised therewith.
NASB:
And I set my mind to seek and explore by wisdom concerning all that has been done under heaven. It is a grievous task which God has given to the sons of men to be afflicted with.
KJV:
For all his days are sorrows, and his travail grief; yea, his heart taketh not rest in the night. This is also vanity.
NASB:
Because all his days his task is painful and grievous; even at night his mind does not rest. This too is vanity.
KJV:
For God giveth to a man that is good in his sight 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 is good before God. This also is vanity and vexation of spirit.
NASB:
For to a person who is good in His sight He has given wisdom and knowledge and joy, while to the sinner He has given the task of gathering and collecting so that he may give to one who is good in God's sight. This too is vanity and striving after wind.
KJV:
I have seen the travail, which God hath given to the sons of men to be exercised in it.
NASB:
I have seen the task which God has given the sons of men with which to occupy themselves.
KJV:
There is one alone, and there is not a second; yea, he hath neither child nor brother: yet is there no end of all his labour; neither is his eye satisfied with riches; neither saith he, For whom do I labour, and bereave my soul of good? This is also vanity, yea, it is a sore travail.
NASB:
There was a certain man without a dependent, having neither a son nor a brother, yet there was no end to all his labor. Indeed, his eyes were not satisfied with riches and he never asked, "And for whom am I laboring and depriving myself of pleasure?" This too is vanity and it is a grievous task.
KJV:
For a dream cometh through the multitude of business; and a fool's voice is known by multitude of words.
NASB:
For the dream comes through much effort and the voice of a fool through many words.
KJV:
But those riches perish by evil travail: and he begetteth a son, and there is nothing in his hand.
NASB:
When those riches were lost through a bad investment and he had fathered a son, then there was nothing to support him.
KJV:
When I applied mine heart to know wisdom, and to see the business that is done upon the earth: (for also there is that neither day nor night seeth sleep with his eyes:)
NASB:
When I gave my heart to know wisdom and to see the task which has been done on the earth (even though one should never sleep day or night),