“No one really knows why they are alive until they know what they'd die for.”
“No one really knows why humans do what they do.”
“I didn't know I was really alive in this world until I felt things hard enough to kill for 'em...”
“I have never lived before...Until this summer, I did not know what it was to be alive.”
“I'm one of those people who doesn't really know what he thinks until he writes it down.”
“I don't know if any of us really know what we are capable of until it comes to it.”