"Grateful in Any Circumstances". Dieter F. Uchtdorf’s address at the General Conference of the Church of Jesus Christ of Latter-day Saints, www.lds.org. April 2014.
Michel de Montaigne (1701). “An Abstract of the most Curious and Excellent Thoughts in Seigneur de Montaigne's Essays ... Done into English from the French original.Jpp. 227”, p.189