The school-boy doesn't force himself to learn his vocabularies and rules altogether at night, but knows that be must impress them again in the morning. ↗
We cannot be any stronger in our foreign policy for all the bombs and guns we may heap up in our arsenals than we are in the spirit which rules inside the country. Foreign policy, like a river, cannot rise above its source. ↗
Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? ↗