Memorable sentence about passwords

As announced, the Longhorn Server SDR is here! I'm happily attending a session delivered by our Stuart Kwan, naturally about Identity. While exploring the challenges that a user faces while dealing with his many passwords, and the tendency to reuse the same credentials on multiple websites, he came out wiht a memorable (and very true) sentence:

[passwords] are a shared secret that we trained the users to disclose

Very funny [:)]