I've been quite fascinated by the relative insignificance of human existence the shortness of life. We might as well be a letter in a word in a sentence on a page in a book in a library in a city in one country in this enormous universe! And that kind of fear and insignificance has kept me awake at night.
Each person has inside a basic decency and goodness. If he listens to it and acts on it he is giving a great deal of what it is the world needs most. It is not complicated but it takes courage. It takes courage for a person to listen to his own goodness and act on it.