"The colouring of the maps of our geometricians had also given me a taste for drawing. I bought some colours, and began to paint flowers and landscapes. It was a pity that I found I possessed but little talent for this art, for I was entirely devoted to it. I could have spent whole months in the midst of my crayons and pencils without going out. As this occupation occupied too much of my attention, they were compelled to drag me away from it. It is always the same with all the pursuits to which I begin to devote myself; they grow upon me, become a passion, and soon I see nothing else in the world but my favourite amusement. Age has not cured me of this fault, it has not even diminished it; even while I write this, I sit like an old twaddler, infatuated with another study, which is useless to me and of which I understand nothing, which even those who have devoted themselves to it during their youth, are obliged to give up at the age when I want to begin it."
January 1, 1970
https://en.wikiquote.org/wiki/Confessions_(Rousseau)