"Remember that sometimes not getting what you want is a wonderful stroke of luck."

"We are visitors on this planet. We are here for ninety or one hundred years at the very most. During that period, we must try to do something good, something useful, with our lives. If you contribute …"

"I am a very optimistic person. I believe that humanity has the potential to create a better world."

"I find that the great thing in this world is not so much where we stand, as in what direction we are moving."

"In the practice of tolerance, one’s enemy is the best teacher."