The only means of strengthening one's intellect is to make up one's mind
about nothing — to let the mind be a thoroughfare for all thoughts.

The value of a college education is not the learning of many facts but the training of the mind to think, he [Einstein] said.

He says, 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. You might be poor, your shoes might be broken, but your mind is a palace.