What, then, shall tell us how far we can go? What shall teach us how to be eloquent without screaming, clear without being loud, impressive without wasting our strength in seeking to make an impression? These questions bring us back to what we started with, as the indispensable requisite for Service--some guiding and religious principles behind even the kindliest and steadiest tempers. For many things in the Service of Man no exact rules will avail; neither logic nor bye-laws of administration can teach us to observe the uncertain and constantly varying degree of duty, which they demand. Tact for that is bestowed only by the influence of lofty principles working from above. This is a case in point. What rules of logic or "directions of the superior authority" can, in the Service of Man, distinguish for us between excitement and earnestness, bluster and eloquence, energy and mere self-advertisement; on whose subtle differences the whole success of the service must turn. Only the discipline of faith, only the sense of God, can help us here. The practical temper by itself will not help us. To be busy but gives us too great self-importance; and hard work often serves only to bring out the combative instincts. To know that we are His Servants shall keep us meek; that we are held fast by His hand shall keep us calm; that His great laws are not abrogated shall keep us sane. When for our lowliest and most commonplace kinds of service we think no religion is required, let us remember the solemn introduction of the evangelist to his story of the foot-washing. _Jesus knowing that the Father had given all things into His hands, and that He came forth from God and goeth unto God, riseth from supper, and layeth aside His garments; and He took a towel, and girded Himself; then He poureth water into the bason, and began to wash His disciples' feet._ 2. But to meekness and discipline the Servant adds gentleness. _Reed that is broken he breaks not off,_ _Wick that is fading he does not quench;_ _Faithfully brings he forth law._ The force of the last of these three lines is, of course, qualificative and conditional. It is set as a guard against the abuse of the first two, and means that though the Servant in dealing with men is to be solicitous about their weakness, yet the interests of religion shall in no way suffer. Mercy shall be practised, but so that truth is not compromised.