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Yawns are not the only infectious things out there besides germs. Giggles can spread from person to person. So can blushing. But maybe the most powerful infectious thing is the act of speaking the truth.Vera Nazarian
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Greed is a contagious mental illness without which civilization as we know it would not have been possible.Mokokoma Mokhonoana
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The only activity a cynic will find contagious is yawning, that is, with other people, at other people.Criss Jami
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Greatness can be contagious, but first there must be contact.TemitOpe Ibrahim
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A smile will go the mile, while a frown will take you down.Anthony Liccione
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It is not about whether you call yourself a leader or not. It is about what you have to show to people as a leader. Leadership is contagious, you carry it and share it.Israelmore Ayivor
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Beware the unbelief of others. It's contagious!Jim George
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Beware anger is contagious... Don't allow other's anger to become yoursPrabakaran Thirumalai
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To paraphrase Lucretius, there's nothing more useful than to watch a man or woman in times of contagious deadly disease peril combined with his or her assumptions of financial adversity to discern what kind of man or woman they really are.T.K. Naliaka
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Be careful with the kind of company you keep, because behaviors and habits are very contagious.Unknown
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Fear is contagious. Fortunately, so is courage. Learning to become fearless will touch everyone around you, and best of all, you'll find it's a gift that keeps on giving.Michelle Aguilar
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For any creative thought to be contagious, it must first be worthy of a sneeze.Ryan Lilly
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Everyday interactions we have with other people are definitely contagious, in terms of happiness.Nicholas A. Christakis
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There is no passion so contagious as that of fear.Michel De Montaigne
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Freedom is contagious. That's why despots fear it so much.Bill Owens
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There's something contagious about demanding freedom.Robin Morgan