9  They are all plain to him that understandeth, and right to them that find ^bknowledge.

  14  The heart of him that hath understanding seeketh ^bknowledge: but the mouth of fools feedeth on foolishness.

  24  Wisdom is before him that hath ^aunderstanding; but the eyes of a fool are in the ends of the earth.

  28  O that cunning plan of the evil one! O the vainness, and the frailties, and the foolishness of men! When they are learned they think they are ^ewise, and they hearken not unto the counsel of God, for they set it aside, supposing they know of themselves, wherefore, their wisdom is foolishness and it profiteth them not. And they shall perish.