H2O

H2O two hydrogen atoms linked to one oxygen and here's life. Water is the only element that can be found in the liquid, solid and gaseous state, the simplest and indispensable substance in the world, we are composed of 70% and our planet is called the blue planet. Colorless, odorless, tasteless, wanting also invisible but with a devastating force, capable of altering entire geographic areas. I think the following quote of Laozi perfectly represents water: "This is how it must be, it must be like water, no obstacles - it flows, finds a dam, then stops, the dam breaks, it flows again, in a square bowl it is square In one round it is round Nothing exists in the most adaptable world of water, but when it falls on the ground, persisting, nothing can be stronger than her. " (Laozi)