" 'I saw the light of your room through the bottom of the door,' said vice-admiral, 'the watchman told me he had seen you in the yard four o'clock in the morning. How many hours per day do you work?'
'It depends. Sometimes eighteen, sometimes twenty.'
'Twenty!' Uncle Jan shook his head, his face became even more concerned. Vice-admiral could not believe that there would be such a thickhead in Van Gogh family. "

― Irving Stone , Lust for Life