Aristotle also discussed why touch can be considered the most intelligent of the senses: after all, it most contributes to the preservation of a living being and protects it from death. The book popularly talks about the skin as an organ of perception; about the significance of touch, how its mechanisms work; about experiments on the psychology of tactile perception, about tactile forms of activity and self-expression. Why doesn’t watching a hammer hit someone else’s finger make us pull our hand away, but when someone itches nearby, do we also itch? How does the texture of the objects we touch affect our decisions and actions? Can skin sensations subconsciously influence our impressions of people and situations?..