The most challenging exercise in concentration and patience is undoubtedly writing surrounded by noise. Chaining reasoning with the mind invaded by outside noises is like placing a sound recorder in the middle of a battlefield and, wielding a violin, assigning oneself the mission of recording a complete song. There are, it is true, noises and noises. None of them seems to overcome the power of the human voice, in its infinite manifestations. The words, in the brain that reasons, seem to invade it and interpose themselves in the space that separates the words from the sentence project, making any solid logical formation impossible, requiring the effort to start over and over again. In short, it is an exercise with a result that is almost always useless; except for the fact that he who practices it regularly is unlikely to be irritated on other occasions.