Water as a source of life, as a primordial element. The philosopher Thales defined it as the "Principle of Being", identifying the original principle (archè) precisely in water, which he considered the source, substance and ultimate term of reality. Water, in addition to its philosophical, religious or scientific meanings, has always had many implications with work, with society, with nature, but above all in our daily reality and for the issues that are connected to it. Water is starting to run out, putting at risk, in some areas, even the survival of nature and man himself.