Hello guy's let's think about living beings. Let we take a human our birth we take our mom's vitamins and energy to grow. And the different systems, millions of neurons, different body parts for different purposes different types of muscles bones, for thinking purpose brain it's a one of best storage device which by naturally with out any hard disk. And AI (artificial intelligence) system brain which order everything. And natural motor heart it will working continuously without any repairs, and bones these are amazing one which gives structure with out any construction, and our finger print it's awesome one each and everyone have a different fingerprint, And senses smell, vision, hear, touch, everything is awesome. So keep your surrounding happy.... Enjoy everything.... Make a smile.... Do something.... Thank you buddies