"Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful."
"A man is ethical only when life, as such, is sacred to him, that of plants and animals as that of his fellow men, and when he devotes himself helpfully to all life that is in need of help."
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Source: Albert Schweitzer (2014). “A Treasury of Albert Schweitzer”, p.67, Open Road Media
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