Quote by Jonas Salk

"The reward for work well done is the opportunity to do more."

"Hope lies in dreams, in imagination, in the courage of those who dare to try."

"Our greatest responsibility is to be good ancestors."

"The polio vaccine has already saved more lives than the combined services of all medical specialties."

"Life is meant to be lived with passion."

"Life is what happens when you're busy making other plans."

"Life is a journey, not a destination."

"Life's too short for regrets."