Years and years ago I read Einstein's biography (the one by Isaacson). One anecdote that remains bright in my memory after all these years is about Einstein and sailing. Einstein liked sailing, and because of where he was living he mostly did lake sailing. One thing about lake sailing is that you can often end up becalmed. What Einstein did was to take a notebook with him when he went sailing; a notebook with notes about what he was working on at the time. Whenever the wind died down he would take out his notebook and start working on his current research. When the wind picked up he would put his notebook away and resume sailing.

There is no doubt that Einstein was brilliant. I believe he was as successful as he was because he was also exceptionally self disciplined.