[...] I observed he [Samuel Johnson] poured a large quantity of it [wine] into a glass, and swallowed it greedily. Everything about his character and manners was forcible and violent; there never was any moderation; many a day did he fast, many a year did he refrain from wine; but when he did eat, it was voraciously; when he did drink wine, it was copiously. He could practise abstinence, but not temperance.