Every time we teach a child something, we keep him from inventing it himself.

Every film is a new challenge.

The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

在科学领域，我们必须准备好接受我们最珍视的理论有一天可能会被取代。