Many very serious-minded, solid, and knowledgeable people work hard in science all their lives and produce nothing of the smallest importance, while others, few by comparison and perhaps seemingly carefree and not highly erudite, exhibit a serendipity of mind that enables them to have valuable ideas in any subject they may choose to take up.
In: R. Duncan and M. Weston-Smith (eds.), The Encyclopaedia of Ignorance: Everything You Ever Wanted to Know