Occasionally, (Einstein) would take rambling walks on his own, which could be dicey. One day someone called the Institute and asked to speak to a particular dean. When his secretary said that the dean wasn’t available, the caller hesitatingly asked for Einstein’s home address. That was not possible to give out, he was informed. The caller’s voice then dropped to a whisper. ‘Please don’t tell anybody,’ he said, ‘but I am Dr. Einstein, I’m on my way home, and I’ve forgotten where my house is.

Autore: Walter Isaacson