"First and foremost, the masterly etching, 'The Bush', by Daubigny/Ruisdael. [= Daubigny's etching 'The bush', he made after Jacob van Ruisdael ].. ..I plan to do two drawings, either in sepia or something else, one of them after this etching [by Daubigny] — the other [etching, made] after T. Rousseau's 'The oven in Les Landes'. This latter sepia is already done — it's true — but if you compare it with Daubigny's etching, you'll understand that it becomes weak, even though the sepia drawing considered on its own may very well have a certain tone and sentiment. I have to go back to it and work on it again.. ..I couldn't tell you how happy I feel to have taken up drawing again. It had already been on my mind for a long time, but I always saw the thing as impossible and beyond my reach."
January 1, 1970
https://en.wikiquote.org/wiki/Charles-Fran%C3%A7ois_Daubigny