If you play jazz, then you play with your fingers. If you're playing rock, you use a pick. There's really no rhyme or reason to that other than that's just the way it has been.
“A young man who isn't a socialist hasn't got a heart; an old man who is a socialist hasn't got a head.”
“The Supreme Court's only armor is the cloak of public trust; its sole ammunition, the collective hopes of our society.”