"The past is over. We must look to the future. But the past is not forgotten."

"We are moving towards a new world, a world without wars, a world without violence. But this will not happen overnight."

"I'm a realist. I see things as they are."

"The nuclear arms race is madness. It is like two people sitting on a powder keg, each with a match."

"I'm not a pessimist. I'm an optimist."