Focus your energies on doing what you can, rather than worrying about what you can’t.
People are capable of so many great and wonderful things. Think 
back to what life was like even 150 years ago, and compare it to life now. Back then, electric lights, telephones, television, automobiles and computers didn’t exist. Most people’s survival was dependent upon crops and weather. Now flash forward to today and look around. If you’re reading this, you’re on a computer, able to communicate with millions of other people in a split second with the touch of a button. Chances are, you have a device that can hold thousands of songs and is no bigger than a playing card, or you read your books and newspapers on an electronic device. We’ve traveled in space, and under the oceans. We have done so much, discovered so much, created so much. When you thing about everything we’ve done, and all the things we CAN do, why would you even want to waste your time and energy in worrying about what can’t be done?
