Brian Tracy quote: You must raise your aspirations, set higher goals, and make...

Debes elevar tus aspiraciones, fijarte metas más altas y elaborar planes detallados para alcanzarlas.

Brian Tracy

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Brian Tracy (1996). “Advanced Selling Strategies: The Proven System of Sales Ideas, Methods, and Techniques Used by Top Salespeople”, p.29, Simon and Schuster

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