This quote summarizes well how I feel about photography:
"The man who lives in his eyes is continually confronted with scenes and spectacles that compel his attention or admiration and demand an adequate reaction. To pass on without pause is impossible and to continue after purely mental applause is unsatisfying; some real tribute must be paid. Photography, to many of its addicts, is a convenient and simple means of discharging these ever recurring debts to the visual world."
Edwin Smith, 1971