Two Sayings

Here are my favorite two sayings that I learned in the world of medicine:
1. Absence of evidence does not signify evidence of absence.
2. Common things are common, and uncommon things are uncommon. Uncommon manifestation of common things is more common than the common manifestation of uncommon things.

Shahrzad and I are visiting the San Francisco Bay area. We have a most spectacular view of the bay from the window of our hotel room. Pictures and stories to follow soon.