2 : Sometimes it's better to let go without knowing the real reason... because it will surely hurt more to find it UNREASONABLE.
3 : Don't worry about people in the past. There is a reason why they did not make it into your future.
4 : Oftentimes, you are not really afraid of loving someone. You're just afraid of not being loved back.
5 : Love is... giving someone the power to break your heart, but trusting her/him not to.