Recognition (n.) is a change from ignorance to knowledge, producing love or hate between persons destined for good or bad fortune.
Recognition (n.) at its best comes just in time: Merope about to slay her son recognizes him and spares him.
Recognition (n.) by signs — scars, necklaces, tokens — is the least artistic kind, used most often out of poverty of wit.
Recognition (n.) the poet invents at will is artless: Orestes simply says he is Orestes — what the poet requires, not what the plot does.
Recognition (n.) by reasoning: 'Some one resembling me has come: no one resembles me but Orestes: therefore Orestes has come.'
Recognition (n.) is best when it arises from the incidents themselves — it was natural that Iphigenia should want to send a letter.