“I'm not good enough to do something I dislike. In fact, I find it hard enough to do something that I like.”

Source: Succeeding in Science: Some Rules of Thumb (1993)
Context: Never do anything that bores you. My experience in science is that someone is always telling to do something that leaves you flat. Bad idea. I'm not good enough to do something I dislike. In fact, I find it hard enough to do something that I like. … Constantly exposing your ideas to informed criticism is very important, and I would venture to say that one reason both of our chief competitors failed to reach the Double Helix before us was that each was effectively very isolated.