Oh the places you'll go

[Leanne]

Even for charity, presumably the poems also need to be either out of copyright or you'll be seeking permission from the poets/ poets' estate, yes?

I don't believe I've ever heard anyone refer to a Dr Seuss poem as "the classic" before, but there you go. No doubt Maya Angelou has plenty of suitable, simplistic, troublehopeaspiration poems to choose from -- especially the ones she wrote for Hallmark.