A Christian man then is bound to live a life which all men will acknowledge to be good. In that precept is implied the recognition of even bad men's notions of morality as correct. The Gospel is not a new system of ethics, though in some points it brings old virtues into new prominence, and alters their perspective. It is further implied that the world's standard of what Christians ought to be may be roughly taken as a true one. Christian men would learn a great deal about themselves, and might in many respects heighten their ideal, if they would try to satisfy the expectations of the most degraded among them as to what they ought to be. The worst of men has a rude sense of duty which tops the attainments of the best. Christian people ought to seek for the good opinion of those around them. They are not to take that opinion as the motive for their conduct, nor should they do good in order to be praised or admired for it; but they are to 'adorn the doctrine,' and to let their light shine that men seeing their good may be led to think more loftily of its source, and so to 'glorify their Father which is in heaven.' That is one way of preaching the Gospel. The world knows goodness when it sees it, though it often hates it, and has no better ground for its dislike of a man than that his purity and beauty of character make the lives of others seem base indeed. Bats feel the light to be light, though they flap against it, and the winnowing of their leathery wings and their blundering flight are witnesses to that against which they strike. Jesus had to say, 'The world hateth Me because I testify of it that the deeds thereof are evil.' That witness was the result of His being 'the Light of the world'; and if His followers are illuminated from Him, they will have the same effect, and must be prepared for the same response. But none the less is it incumbent upon them to 'take thought for things honourable in the sight of all men.'