―Bassanio:Antonio,I am married to a wife Which is as dear to me as life itself;But life itself, My wife, and all the world.Are not with me esteem'd above thy life;I would lose all, ay, sacrifice them all,Here to the devil, to deliver you.Portia:Your wife would give you little thanks for that,If she were by to hear you make the offer.The above is a quotation taken from Shakespeare's comedy The Merchant of Venice.The quoted part can be regarded as a good example to illustrate____.