This slowness of thought, joined to vivacity of feeling, I am not only sensible of in conversation, but even alone. When I write, my ideas are arranged with the utmost difficulty. They glance on my imagination and ferment till they discompose, heat, and bring on a palpitation; during this state of agitation, I see nothing properly, cannot write a single word, and must wait till it is over. Insensibly the agitation subsides, the chaos acquires form, and each circumstance takes its proper place. Have you never seen an opera in Italy? where during the change of scene everything is in confusion, the decorations are intermingled, and any one would suppose that all would be overthrown; yet by little and little, everything is arranged, nothing appears wanting, and we feel surprised to see the tumult succeeded by the most delightful spectacle. This is a resemblance of what passes in my brain when I attempt to write; had I always waited till that confusion was past, and then pointed, in their natural beauties, the objects that had presented themselves, few authors would have surpassed me.
Thence arises the extreme difficulty I find in writing; my manuscripts, blotted, scratched, and scarcely legible, attest the trouble they cost me; nor is there one of them but I have been obliged to transcribe four or five times before it went to press. Never could I do anything when placed at a table, pen in hand; it must be walking among the rocks, or in the woods; it is at night in my bed, during my wakeful hours, that I compose; it may be judged how slowly, particularly for a man who has not the advantage of verbal memory, and never in his life could retain by heart six verses. Some of my periods I have turned and returned in my head five or six nights before they were fit to be put to paper: thus it is that I succeed better in works that require laborious attention, than those that appear more trivial, such as letters, in which I could never succeed, and being obliged to write one is to me a serious punishment; nor can I express my thoughts on the most trivial subjects without it costing me hours of fatigue. If I write immediately what strikes me, my letter is a long, confused, unconnected string of expressions, which, when read, can hardly be understood.
It is not only painful to me to give language to my ideas but even to receive them. I have studied mankind, and think myself a tolerable observer, yet I know nothing from what I see, but all from what I remember, nor have I understanding except in my recollections. From all that is said, from all that passes in my presence, I feel nothing, conceive nothing, the exterior sign being all that strikes me; afterwards it returns to my remembrance; I recollect the place, the time, the manner, the look, and gesture, not a circumstance escapes me; it is then, from what has been done or said, that I imagine what has been thought, and I have rarely found myself mistaken.