Charles H. Spurgeon on Psalms 119:9

Wherewithal shall a young man cleanse his way? etc. Aristotle, that great dictator in philosophy, despaired of achieving so great an enterprise as the rendering a young man capable of his hyika akroamata, "his grave and severe lectures of morality"; for that age is light and foolish, yet headstrong and untractable. Now, take a young man all in the heat and boiling of his blood, in the highest fermentation of his youthful lusts; and, at all these disadvantages, let him enter that great school of the Holy Spirit, the divine Scripture, and commit himself to the conduct of those blessed oracles; and he shall effectually be convinced, by his own experience, of the incredible virtue, the vast and mighty power, of God's word, in the success it hath upon him, and in his daily progression and advances in heavenly wisdom. John Gibbon (about 1660) in "The Morning Exercises."