“For one swallow does not make a summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy.”
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Excellence is an art won by training and habituation. We do not act rightly because we have virtue or excellence, but we rather have those because we have acted rightly. We are what we repeatedly do. Excellence, then, is not an act but a habit.
Aristotle 
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