Jonas Salk Vaccines Quotations

When I worked on the polio vaccine, I had a theory. I guided each [experiment] by imagining myself in the phenomenon in which I was interested. The intuitive realm . . . the realm of the imagination guides my thinking.

[Who owns the patent on this vaccine?] Well, the people, I would say. There is no patent. Could you patent the sun?

Reply when questioned on the safety of the polio vaccine he developed: It is safe, and you can't get safer than safe.