With Leo's rare combination of editorial acumen and business know-how, he might have become a publishing giant had he not permitted his drinking and gambling to hold him back.
-- Ellis Amburn, Subterranean Kerouac: The Hidden Life of Jack Kerouac

The family store gave him a sharp business acumen -- acquired, he would say, by manning the cash register -- that few of his rivals possessed.
-- David Schiff, "Who Was That Masked Composer?", The Atlantic, January 2000