C. F. Keil and Franz Delitzsch on Proverbs 14:6

Pro 14:6 6 In vain the scorner seeketh wisdom;    But to the man of understanding knowledge is easy.

The general sentence is concrete, composed in the common historical form. Regarding ואין, necquidquam, vid., at Pro 13:4. The participle נקל is here neut. for נקלּה, something which makes itself easy or light. The frivolous man, to whom truth is not a matter of conscience, and who recognises no authority, not even the Supreme, never reaches to truth notwithstanding all his searching, it remains veiled to him and far remote; but to the man of understanding, who knows that the fear of God and not estrangement from God leads to truth, knowledge is an easy matter - he enters on the right way to this end, he brings the right receptivity, brings to bear on it the clear eye, and there is fulfilled to him the saying, “To him that hath it is given.”