And thus the text says, "He who walketh with wise men shall be wise: but the companion of fools shall be broken" (Prov. 13:20). || "He who walketh with wise men shall be wise." To what is this like? To one who enters a perfumer's shop, although he neither takes anything nor gives anything, nevertheless he absorbs a good scent, and goes away (therewith). Likewise everyone who walks with the righteous acquires some of their good ways and deeds.
Therefore it is said, "He who walketh with wise men shall be wise." "But the companion of fools shall be broken" (ibid.). To what is this comparable? To a man who enters a tannery, although he neither takes or gives anything, nevertheless he has absorbed a foul odour.
Likewise he who walks with the wicked acquires some of their evil ways and deeds, that is according to what is written, "But the companion of fools shall be broken" (ibid.).