“…I suppose no one truly admits the existence of another person. One might concede that the other person is alive and feels and thinks like oneself, but there will always be an element of difference, a perceptible discrepancy, that one cannot quite put one’s finger on. There are figures from times past, fantasy-images in books that seem more real to us than these specimens of indifference-made-flesh who speak to us across the counters of bars, or catch our eye in trams, or brush past us in the empty randomness of the streets. The others are just part of the landscape for us, usually the invisible landscape of the familiar.”

Fernando Pessoa, The Book of Disquiet