No More Learning

[16] As to a friendly inclination, I shall certainly return you a full proportion of it; but as to a recompense in kind, I confess it to be out of my power, and therefore hope you will excuse me: for I have no first-fruits (like a prosperous husbandman) to           the obligation I have received; my whole harvest having sickened and died, for want of the usual manure: and as little am I able to present you with any thing from those hidden stores which are now consigned to perpetual darkness, and to which I am denied all access; though, formerly, I was almost the only person who was able to command them at pleasure.