On this point my friend, Mr. G.S. Arundale, the well-known Principal of the Central Hindu College, writes: "At frequent intervals, of course, boys come with complaints, with petitions, and here I have to be very careful to concentrate my attention on each boy and on his particular need, for the request, or complaint, or trouble, is sometimes quite trivial and foolish, and yet it may be a great source of worry to the boy unless it is attended to; and even if the boy cannot be satisfied he can generally be sent away contented. One of the most difficult tasks for a teacher is to have sufficient control over his attention to be able continually to turn it from one subject to another without losing intensity, and to bear cheerfully the strain this effort involves. We often speak of something taxing a person's patience, but we really mean that it taxes a person's attention, for impatience is only the desire of the mind to attend to something more interesting than that which for the moment occupies it." Boys must be helped to concentrate their attention on what they are doing, for their minds are always wandering away from the subject in hand. The world outside them is so full of attractive objects new and interesting to them, that their attention runs away after each fresh thing that comes under their eyes. A child is constantly told to observe, and he takes pleasure in doing so; when he begins to reason he must for the time stop observing and concentrate his mind on the subject he is studying. This change is at first very difficult for him, and the teacher must help him to take up the new attitude. Sometimes attention wanders because the boy is tired, and then the teacher should try to put the subject in a new way. The boy does not generally cease to pay attention wilfully and deliberately, and the teacher must be patient with the restlessness so natural to youth. Let him at least always be sure that the want of attention is not the result of his own fault, of his own way of teaching. If the attention of the teachers and the boys is trained in this way, the whole school life will become fuller and brighter, and there will be no room for the many harmful thoughts which crowd into the uncontrolled mind. Even when rest is wanted by the mind, it need not be quite empty; in the words of the Master: "Keep good thoughts always in the background of it, ready to come forward the moment it is free."