"Remember, today is the tomorrow you worried about yesterday."
"Let's find and remedy all our weaknesses before our enemies get a chance to say a word. That is what Charles Darwin did. ...When Darwin completed the manuscript of his immortal book "The Origin Of Species" he realized that the publication of his revolutionary concept of creation would rock the intellectual and religious worlds. So he became his own critic and spent another 15 years checking his data, challenging his reasoning, and criticizing his conclusions."
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Source: Dale Carnegie (2010). “How To Enjoy Your Life And Your Job”, p.68, Simon and Schuster
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"If you are not in the process of becoming the person you want to be, you are automatically engaged in becoming the person you don't want to be."
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