Although it is difficult, at times, to endure, yet if one will not make an effort to endure he will have to endure, then, at all times. The world is what it is, it cannot be changed. If we want it to be different, we must change ourselves. If we become susceptible to jarring effects, jarring influences, not only human activities around us but even the moving of the leaves will make us uncomfortable. To a miserable person the midsummer day is worse than a dark night; all seems gloomy, everything seems wretched, and he himself melancholy. This tendency is developed by not making an effort to endure but by avoiding situations which ask for one's endurance.