"Not one of us knows what effect his life produces, and what he gives to others; that is hidden from us and must remain so, though we are often allowed to see some little fraction of it, so that we may not lose courage."

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If one fails to develop goals that give meaning to one’s existence, if one does not use the mind to it’s fullest, then good feelings fulfill just a fraction of the potential we possess. True happiness involves the pursuit of worthy goals. Without dreams, without risks, only a trivial semblance of living can be achieved.

— Dan Buettner