We are caught up in a paradox, one which might be called the paradox of conceptualization. The proper concepts are needed to formulate a good theory, but we need a good theory to arrive at the proper concepts.
Do not vainly lament, but do wonder at the rule of transiency and learn from it the emptiness of human life. Do not cherish to unworthy desire that the changeable might become unchanging.
Mr Lorry asks the witness questions: Ever been kicked? Might have been. Frequently? No. Ever kicked down stairs? Decidedly not; once received a kick at the top of a staircase, and fell down stairs of his own accord.