Ray Bradbury said this quote

Who wants to see the Future, who ever does? A man can face the Past, but to think - the pillars crumbled, you say? And the sea empty, and the canals dry, and the maidens dead, and the flowers withered? The Martian was silent, but then he looked ahead. But there they are. I see them. Isn't that enough for me? They wait for me now, no matter what you say.