Imagine dissociating a human body into its most fundamental building blocks. We will collect a considerable portions of gases, namely hydrogen, oxygen and nitrogen; sizeable amount of carbon and calcium; small fractions of several metals such as iron, magnesium zinc and tiny levels of many other chemical elements. The total cost of these materials would be less than the cost of a good pair of shoes. Are we humans worth so little? Obviously not, mainly because it is the arrangements of these elements and the way they are assembled that allow human beings to eat, talk, think and reproduce.