However much knowledge of science or art or philosophy a man has, if he does not consider these simple aspects of psychology he will alloy¢ his mind to develop many illnesses which cannot be cured by external remedies. Our attitude with regard to illness should be that one is resigned to the illness of the past, but one must try and avoid the illness of the future. And if a person is anticipating that something good will come his way, he must say to himself that the time is coming closer and closer every day; but if it is something he does not want, he must say that the time will never come.