Jonas Salk: You have to develop a thick skin in life. It’s not in this field only. You might think of the ideal of the scientists, the ivory tower, the idealist. That’s true of some. And, I wouldn’t guess as to what proportion. But there are some who are of that character, and there are some who are not. What comes to mind now, as I often think of this, it’s like a sea gull syndrome. I call them sea gull syndrome. When I walk on the beach, I see the sea gulls, going out and getting a fish or a piece of bread on the beach. And the others go after him, that one, rather than go get their own. And so, I see sometimes that if someone does something and gets credit for it, then there is this tendency to have this competitive response.