I use that St. Ex quote on several of the cover-photos I've made for my math facebook group. <3 I love it desperately and first read it in the context of math, actually, as the epigraph to one of the most important books to me -- A Mathematician's Lament by Paul Lockhart.

Which clever cover images and group maintenance, is one way in which, I hope, I am making a difference while sitting at my computer with clean hands.

Annnnd.... coincidentally I know someone who was rescued by Mother Teresa (or her org?) as a baby.