“You have to study and learn so that you can make up your own mind about history and everything else, but you can't make up an empty mind. Stock your mind, stock your mind. It is your house of treasure and no one in the world can interfere with it. [...] Your mind is your house and if you fill it with rubbish (...) it will rot in your head. You might be poor, your shoes might be broken, but your mind is a palace.”