Quote by Johnny Cash

"I keep a close watch on this heart of mine"

"You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes, but you don't dwell on it."

"I'm just trying to matter and leave my mark for good."

"The greatest gifts are those that come from the heart."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."