KJV:
For in much wisdom is much grief: and he that increaseth knowledge increaseth sorrow.
NASB:
Because in much wisdom there is much grief, and increasing knowledge results in increasing pain.
KJV:
I sought in mine heart to give myself unto wine, yet acquainting mine heart with wisdom; and to lay hold on folly, till I might see what was that good for the sons of men, which they should do under the heaven all the days of their life.
NASB:
I explored with my mind how to stimulate my body with wine while my mind was guiding me wisely, and how to take hold of folly, until I could see what good there is for the sons of men to do under heaven the few years of their lives.
KJV:
So I was great, and increased more than all that were before me in Jerusalem: also my wisdom remained with me.
NASB:
Then I became great and increased more than all who preceded me in Jerusalem. My wisdom also stood by me.
KJV:
And I turned myself to behold wisdom, and madness, and folly: for what can the man do that cometh after the king? even that which hath been already done.
NASB:
So I turned to consider wisdom, madness and folly; for what will the man do who will come after the king except what has already been done?
KJV:
Then I saw that wisdom excelleth folly, as far as light excelleth darkness.
NASB:
And I saw that wisdom excels folly as light excels darkness.
KJV:
For there is a man whose labour is in wisdom, and in knowledge, and in equity; yet to a man that hath not laboured therein shall he leave it for his portion. This also is vanity and a great evil.
NASB:
When there is a man who has labored with wisdom, knowledge and skill, then he gives his legacy to one who has not labored with them. This too is vanity and a great evil.
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:
Say not thou, What is the cause that the former days were better than these? for thou dost not inquire wisely concerning this.
NASB:
Do not say, "Why is it that the former days were better than these?" For it is not from wisdom that you ask about this.