How a cheap, generic drug became a darling of longevity enthusiasts
To keep himself healthy into his eighth decade, David Sandler recently decided to go beyond his regular workouts and try ...
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How To Increase Sales By The Golden Rule
The late great sales expert David Sandler, in his book The Sandler Rules: 49 Timeless Selling Principles and How to Apply Them, said that: “Selling is a Broadway play performed by a psychiatrist.” ...