Susan Caine is an amer­i­can writer and author of the book Qui­et: The Pow­er of Intro­verts in a World That Can’t Stop Talk­ing. She has a home­page, on which she pub­lished a Man­i­festo about the val­ue of intro­verts in this world. I have trans­lat­ed and pub­lished her Man­i­festo into ger­man, here.