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Jonas Salk Quotes - Page 2

It is said to await certainty is to await eternity.

It is said to await certainty is to await eternity.

"Patenting the Sun: Polio and the Salk Vaccine". Book by Jane S Smith, p. 295, 1990.

It is courage based on confidence, not daring, and it is confidence based on experience.

On testing his vaccine against polio on himself, his wife, and his three sons, May 9, 1955.