13. There is no weapon in the feminine armory to which men are so vulnerable as they are to a smile. —Dorothy Dix (early 20th century advice columnist)
14. A warm smile is the universal language of kindness. —William Arthur Ward
15. Let my soul smile through my heart and my heart smile through my eyes, that I may scatter rich smiles in sad hearts. —Paramahansa Yogananda (influential guru)
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