We must always change, renew, rejuvenate ourselves; otherwise we harden.

emporium |emˈpôrēəm|
noun ( pl. -poriums or -poria |-ˈpôrēə|)

• a business establishment that specializes in products or services on a large scale
• archaic a principal center of commerce; a market.

ORIGIN late 16th cent.: from Latin, from Greek emporion, from emporos ‘merchant,’ based on a stem meaning ‘to journey.’