To fly to the moon is to leave the earth to reach something that has always been seen from afar and never touched. The moon seems close, but its distance is the size of a difficult dream: silence, cold, darkness, and a light that is not its own. When man jumped to the moon, he did not just aim for a dead rock; he wanted to see if it was possible to go beyond his limits. That flight was both scientific and poetic. Someone who looks at the moon either wants to go, or wants to know why he has not gone yet. The moon is not a destination; it is an excuse to rise.