On Witnessing

"How much do you have to hate somebody to not proselytize? How much do you have to hate somebody to believe that everlasting life is possible and not tell them that? If I believed beyond a shadow of a doubt that a truck was coming at you and you didn't believe it, and that truck was bearing down on you, there's a certain point where I tackle you. And this is more important than that." - Penn Jillette