" We’re so close to Earth that sometimes we forget how beautiful it is. Seen from space, our blue planet is remarkably alive— a living paradise suspended in a vast and hostile cosmos. On the first trip to the moon, astronauts were stunned to see Earth rise above the moon’s desolate horizon. We know that on the moon there are no trees, rivers, or birds. No other planet has yet been found to have life as we know it. It is reported that astronauts orbiting high up in space stations spend most of their free time contemplating the breathtaking sight of Earth far below. From a distance, it looks like one giant living, breathing organism. Seeing its beauty and wonder, astronauts feel great love for the whole Earth. They know billions of people are living out their lives on this little planet, with all their joy, happiness, and suffering. They see violence, wars, famine, and environmental destruction. At the same time, they see clearly that this wonderful little blue planet, so fragile and precious, is irreplaceable. As one astronaut put it, “We went to the moon as technicians; we returned as humanitarians. "

― Thich Nhat Hanh , The Art of Living