![Your determination to become a more optimistic person in every part of your life will do more to ensure your success and happiness than any other single quality you can develop. - Brian Tracy quote](https://cdn.quotenova.net/images/authors/b/brian-tracy/brian-tracy-quote-q94mdd--portrait-background-217-1200x630.jpg)
Your determination to become a more optimistic person in every part of your life will do more to ensure your success and happiness than any other single quality you can develop.
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Official sources:
2017 November 05 |
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