"Titian prepared his pictures with a solid stratum of pigment, which served as a bed or fundament upon which to return frequently. Some of these preparations were made with resolute strokes of a brush heavily laden with colour, the half tints struck in with pure red earth, the lights with white, modeled into relief by touches of the same brush dipped into red, black, and yellow. In this way he would give the promise of a figure in four strokes. After laying this [first] foundation he would turn the picture to the wall, and leave it there perhaps for months, turning it round again after a time to look at it carefully, and scan the parts as he would the face of his greatest enemy. If at this time any portion of it should appear to him to have been defective, he would set to work to correct it, applying remedies as a surgeon might apply them, cutting off excrescences here, superabundant flesh there, redressing an arm, adjusting or setting a limb, regardless of the pain which it might cause. In this way he would reduce the whole to a certain symmetry, put it aside, and return again a third or more times, till the first quintessence had been covered over with its padding of flesh."
January 1, 1970
https://en.wikiquote.org/wiki/Titian