No man can promise himself even fifty years of life, but any man may, if he please, live in the proportion of fifty years in forty-let him rise early, that he may have the day before him, and let him make the most of the day, by determining to expend it on two sorts of acquaintance only-those by whom something may be got, and those from whom something maybe learned.

Remarks on the Talents of Lord Byron and the Tendencies of Don Juan (ed. 1823)