Bede, on Prov 13:20

“He that walketh with the wise, shall be wise: a friend of fools shall become like to them.”

“He who walks with the wise will be wise, etc. To walk with the wise is to imitate the actions of the wise. Therefore, however simple and rustic one may be, who cannot comprehend the secrets of wisdom, if he nevertheless follows the examples of the wise by living, he will rightly be counted among the wise. But he who loves the foolish, not because of their nature, since they are men, but because of their foolishness, whether as mimes or actors, or such like, not to correct by instructing, but to make them worse by favoring: such a one, though he seems wise by wit and doctrine, will be held worthy of the mark and condemnation of fools.”

Imported from an open dataset — not yet checked against the printed edition.