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Physicians and scientists have often called the human body a beautiful instrument. The sense in which this metaphor is applied is primarily mechanistic. The human body is a beautiful instrument in that its parts mesh properly and each component performs its function superbly. The metaphor "beautiful

What's your worldview? Are you an optimist or a pessimist by nature? Do you always expect good things to happen or are you waiting for the other shoe to drop? Our mental attitude affects how we interact with others and how we respond to events and the comings and goings in our daily lives. Remarkably,