How small a portion of our life it is that we really enjoy! In youth we are looking forward to things that are to come; in old age we are looking backward to things that are gone past; in manhood, although we appear indeed to be more occupied in things that are present, yet even that is too often absorbed in vague determinations to be vastly happy on some future day when we have time.

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