But today well lived makes every yesterday a dream of happiness, and every tomorrow a vision of hope.
只有今天好好地生活,昨天才会变成幸福的回忆,明天才会成为希望的憧憬。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!