"One thing I have learned in a long life: that all our science, measured against reality, is primitive and childlike—and yet it is the most precious thing we have."

"I believe that democracy is based on the ability to make democracy serve the good of the majority of the people. If it can't do that, then it should not survive."

"The only way to keep your health is to eat what you don't want, drink what you don't like, and do what you'd rather not."

"You gain strength, courage, and confidence by every experience in which you really stop to look fear in the face."

"Never allow a problem to be solved by those who created it."