Under torture you are as if under the dominion of those grasses that produce visions. Everything you have heard told, everything you have read returns to your mind, as if you were being transported, not toward heaven, but toward hell. Under torture you say not only what the inquisitor wants, but also what you imagine might please him, because a bond (this, truly, diabolical) is established between you and him ... These things I know, Ubertino; I also have belonged to those groups of men who believe they can produce the truth with white-hot iron. Well, let me tell you, the white heat of truth comes from another flame.
I did not know then what Brother William was seeking, and to tell the truth, I still do not know today, and I presume he himself did not know, moved as he was solely by the desire for truth, and by the suspicion - which I could see he always harbored - that the truth was not what was appearing to him at any given moment.