Tom Hoopes of Catholic Vote lists his 10 favorite quotes from Pope Francis from his time in Rio around WYD.
Read them here: Top 10 Rio Quotes: What Francis Said and Why
I think my favorite one from this list (one that I actually heard him say, en Español), is:
“Dear young people, please, don’t be observers of life, but get involved. Jesus did not remain an observer, but he immersed himself. Don’t be observers, but immerse yourself in the reality of life, as Jesus did.”
— Pope Francis, July 27, 2013 Youth Prayer Vigil at Rio