Source : Jeffrey Gitomer (2013). “Jeffrey Gitomer's 21.5 Unbreakable Laws of Selling: Proven Actions You Must Take to Make Easier, Faster, Bigger Sales....Now and Forever”, p.161, Bard Press
Jeffrey GitomerSource : Source: www.roomthirteen.com
Source : Jan Hunt (2013). “The Natural Child: Parenting from the Heart”, p.34, New Society Publishers
“If you can't say it simply and clearly, keep quiet, and keep working on it till you can.”
Source : Source: www.commonwealmagazine.org
“All men are caught in an inescapable network of mutuality.”
Brian Tracy
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Dale Carnegie
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Harvey Mackay
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John C. Maxwell
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Ken Blanchard
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Mark Victor Hansen
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Neil Rackham
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Robert Dilts
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Zig Ziglar
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