Jonas Salk, American medical researcher, known for the Salk vaccine against polio

“Know what is the purpose of life that you are inclined to serve, that you are drawn to. Do what makes your heart leap rather than simply follow some style or fashion. Not everyone can or should be a scientist. Not everyone can or should be any one thing. People need to know what kind of purpose they can serve.” (from a 1991 Academy of Achievement interview)

Oct. 28, 1914-June 23, 1995