This quote comes from Blaise Pascal's Pensées, accessible here.
"That is why we like noise and activity so much. That is why imprisonment is such a horrific punishment. That is why the pleasure of being alone is incomprehensible. That is, in fact, the main joy of the condition of kingship, because people are constantly trying to amuse kings and provide them with all sorts of distraction.—The king is surrounded by people whose only thought is to entertain him and prevent him from thinking about himself. King though he may be, he is unhappy if he thinks about it"
"That is why we like noise and activity so much. That is why imprisonment is such a horrific punishment. That is why the pleasure of being alone is incomprehensible. That is, in fact, the main joy of the condition of kingship, because people are constantly trying to amuse kings and provide them with all sorts of distraction.—The king is surrounded by people whose only thought is to entertain him and prevent him from thinking about himself. King though he may be, he is unhappy if he thinks about it"
https://books.google.com/books?id=KezeDwAAQBAJ&pg=PA45&lpg=P...