A nice quote by Gustave Flaubert in his "Dictionnaire des idées reçues" (Dictionary of common ideas):
Architectes: Tous imbéciles. Oublient toujours l'escalier des maisons.(*)(*) roughly: All idiots. Always forget the stairs of the house.
Of course there are exceptions to the rule as demonstrated by M.C. Escher, chief evangelist for cyclic dependencies.
Architect, n. One who drafts a plan of your house, and plans a draft of your money.
I just realized that my architecture quotes are always slightly negative. Well, not all of them. The positive ones are usually by architects and not about architects (D'oh! I just wanted to be more positive - you may find some quotes under the musings label). So - in case you have positive quotes let me know. Just drop a note, leave a comment or draw a plan or use a fancy communication diagram @:)