I studied a good deal in the museum at Naples; the Pompeian paintings are extremely interesting from every aspect. So I am staying in the sun – not to paint portraits but while I am warming myself and looking hard at things I hope I will have acquired some of the grandeur and simplicity of the old masters. Raphael didn't work out-of-doors, but he studied the sunlight all the same – his frescoes are full of it. So, by looking around outside, I have finished by seeing only the broad harmonies, and am no longer preoccupied with the little details, which only extinguish the sunlight, instead of increasing its brilliance. I hope therefore, when I get back to Paris, to produce something which will be the outcome of all these general studies, and to give you the benefit of them.