Do not deceive yourselves. If any of you think you are wise by the standards of this age, you should become "fools" so that you may become wise.
NIV
Let no person deceive himself. If anyone among you supposes that he is wise in this age, let him become a fool [let him discard his worldly discernment and recognize himself as dull, stupid, and foolish, without true learning and scholarship], that he may become [really] wise. [Isa. 5:21.]AMP
Let no man deceive himself. If any man among you seemeth to be wise in this world, let him become a fool, that he may be wise.
KJV
Like a partridge that hatches eggs it did not lay are those who gain riches by unjust means. When their lives are half gone, their riches will desert them, and in the end they will prove to be fools.
NIV
Like the partridge that gathers a brood which she did not hatch and sits on eggs which she has not laid, so is he who gets riches by unjust means and not by right. He will leave them, or they will leave him, in the midst of his days, and at his end he will be a fool.
AMP
As the partridge sitteth on eggs, and hatcheth them not; so he that getteth riches, and not by right, shall leave them in the midst of his days, and at his end shall be a fool.
KJV
The discerning heart seeks knowledge, but the mouth of a fool feeds on folly.
NIV
The mind of him who has understanding seeks knowledge and inquires after and craves it, but the mouth of the [self-confident] fool feeds on folly. [Isa. 32:6.]AMP
The heart of him that hath understanding seeketh knowledge: but the mouth of fools feedeth on foolishness.
KJV