Nothing is impossible; there are ways that lead to everything, and if we had sufficient will we should always have sufficient means. It is often merely for an excuse that we say things are impossible.
It is this kindness of his that unsettles me most. I can dodge a blow or block a knife. I am impervious to poison and know a dozen ways to escape a chokehold or garrote wire. But kindness? I do not know how to defend against that.