You will by this time think I am in love with her; so before I go any further I will tell you I am not — she kept me awake one Night as a tune of Mozart's might do — I speak of the thing as a passtime and an amuzement than which I can feel none deeper than a conversation with an imperial woman the very ‘yes’ and ‘no’ of whose Lips is to me a Banquet.
Source: wiktionary