A person who never made a mistake never tried anything new.
Once you stop learning, you start dying
The future is not a gift-it is an achievement.
"There's been a quantum leap technologically in our age, but unless there's another quantum leap in human relations, unless we learn to live in a new way towards one another, there will be a catastrophe."
Nothing will end war unless the peoples themselves refuse to go to war.
Nothing happens until something moves.