People sometimes overestimate the extent to which the conventional assumptions apply. Often, for example, managers assume they are more qualified than they really are to judge their employees' performance.
I knew a little molecular biology, but I had no notion of what you could do experimentally. It reminded me of electronics, the idea that you had these tools to splice things together in an ordered way, that you could reengineer things in the cell to do something else. --Mark Goulian
"Mathematicians working together just talk through ideas or stare into space hoping to have one. Sometimes they go for a walk. This is particularly pleasant if the walk happens to be through Paris streets or along cliffs overlooking the Mediterranean Sea. Fresh air is essential, especially if one of them smokes." --Ernest Schimmerling