KJV:
And who knoweth whether he shall be a wise man or a fool? yet shall he have rule over all my labour wherein I have laboured, and wherein I have shewed myself wise under the sun. This is also vanity.
NASB:
And who knows whether he will be a wise man or a fool? Yet he will have control over all the fruit of my labor for which I have labored by acting wisely under the sun. This too is vanity.
KJV:
Be not over much wicked, neither be thou foolish: why shouldest thou die before thy time?
NASB:
Do not be excessively wicked and do not be a fool. Why should you die before your time?
KJV:
Yea also, when he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool.
NASB:
Even when the fool walks along the road, his sense is lacking and he demonstrates to everyone that he is a fool.
KJV:
A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?
NASB:
Yet the fool multiplies words. No man knows what will happen, and who can tell him what will come after him?
KJV:
For my people is foolish, they have not known me; they are sottish children, and they have none understanding: they are wise to do evil, but to do good they have no knowledge.
NASB:
"For My people are foolish, They know Me not; They are stupid children And have no understanding. They are shrewd to do evil, But to do good they do not know."