"In the end we only regret the chances we didn't take." So be risky because you would rather look back and say I can't believe I did that instead of I can't believe I didn't do that. I do regret that amazing chance that I didn't take.
"The true mark of maturity is when somebody hurts you and you try to understand their situation instead of trying to hurt them back." // (I don't want to label what "the true mark of maturity" is, but this idea of empathy vs revenge is important to me.