温故知新

By contrast, our powers of dominating non-human nature by understanding it scientifically and by applying scientifically and by applying science to technology has been our most brilliant success. It is questionable whether the behaviour of human beings to each other is morally better in so-called "civilised societies" than it is in so-called "primitive" or "savage" societies. The worst crimes that have been committed in our lifetime have been acts of so-called "civilised" people. ( Arnold J. Toynbee)