With all its sham, drudgery and broken dreams, it is still a beautiful world. Be cheerful. Strive to be happy.
— Max Ehrmann (1872–1945), Desiderata
Image Earthrise taken by Bill Anders, the pilot of Apollo 8; the first Apollo mission to orbit the moon. The crew were the first humans to see the Earth as a whole planet. I had a huge poster of this on my wall for years, it was, and remains an iconic image for me.
(By NASA / Bill Anders [Public domain], via Wikimedia Commons)