I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
The world is a dangerous place to live, not because of the people who are evil, but because of the people who don't do anything about it.
The most beautiful experience we can have is the mysterious - the fundamental emotion which stands at the cradle of true art and true science.
A human being is a part of the whole called by us universe, a part limited in time and space. He experiences himself, his thoughts and feeling as something separated from the rest, a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty.