1/ A book should never see a bookshelf until it has been read!

2/ A room full of books cannot be deemed a library if the books always remain shut!

3/ What is time? Without man on Earth, time would not exist; as for the remaining species, there would be light and dark, life and death.

4/ Always consider your next steps very carefully - They may be somebody else's last!

5/ Man has often stepped beyond the boundaries once seen as impossible. Sometimes, these steps come at a huge price!

6/ The only true way to return after death is in the memory of others.