If there is any country on earth where the course of true love may be expected to run smooth, it is america. — Harriet Martineau
Some lives which grace the earth with their beauty only are here to stay for a very short time. — Doe Zantamata
What a splendid perspective contact with a profoundly different civilization might provide! — Carl Sagan
The Earth is the cradle of Humanity. But one doesn’t always live in the cradle. — Konstantin Tsiolkovsky