"Everybody in the world is seeking happiness— and there is one sure way to find it. That is by controlling your thoughts. Happiness doesn't depend on outward conditions. It depends on inner conditions."

Life Lesson Self-control Happiness

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About Dale Carnegie

American author and lecturer best known for How to Win Friends and Influence People. He developed influential training courses in public speaking and interpersonal communication. His work helped popularize modern self-improvement literature.

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