Let endurance be your watchword: teach life-force in you – your vital being – not to complain but to put up with all the conditions necessary for great achievement… The very essence of endurance, is that the vital should learn to give up its capricious likes and dislikes and preserve an equanimity in the midst of the most trying conditions. When you are treated roughly by somebody or you lack something which would relieve your discomfort, you must keep up cheerfully instead of letting yourself be disturbed. Let nothing ruffle you the least bit, and whenever the vital tends to air its petty grievances with pompous exaggeration just stop to consider how very happy you are, compared to so many in this world. Reflect for a moment on what the soldiers who fought in the last war had to go through. If you had to bear such hardships you would realise the utter silliness of your dissatisfactions.