As long as superstition and ignorance prevail, humanity will fall short of eradicating war, poverty, and hunger.

If you think we can’t change the world, It just means you're not one of those that will

You can either have one guy lifting a billion pounds by himself, and it takes many years of planning and preparation - or you can have a billion people, each lifting one pound, and it takes a mere moment. This is the power of unity.

You have to tell your children about the world they live in, about the discrepancies, about the things that don't work… So you have to bring it up with a scientific orientation so they learn to ask questions, and learn how to say the most difficult thing in the world: 'I don't know'.

There are no bad people, there are people with insufficient information to make appropriate decisions.

All the world's people should share all the world's resources.

When somebody asks, 'Whats the answer to all of these questions?' that's absurd. There is no answer, there are answers, along the way.