Pressure and stress will either make you or destroy you--it depends on you and how you react to them. The principle of pressure in nature is described in the law of thermodynamics, and this pressure principle results in many of nature's wonders. The world's most precious gem, the diamond, is the result of pressure. Carbon deposits in the depths of the earth respond to intense heat and pressure in producing these coveted bits of stone. This was demonstrated years ago when General Electric announced the "successful synthesis of diamonds." Scientists took carbons and submitted them to more than a million and a half pounds of pressure per square inch, coupled with temperatures of 5,000 degrees Fahrenheit to produce the artificial diamond.