“Walk neither faster nor slower than your own soul, because it is your soul that will teach you the usefulness of each step you take. Sometimes taking part in a great battle will be the thing that will help to change the course of history. But sometimes you can do that simply by smiling, for no reason, at someone you happen to pass on the street. Without intending to, you might have saved the life of a complete stranger, who also thought he was useless and might have been ready to kill himself until a smile gave him new hope and confidence.”