We learn our lessons, we get hurt, we want revenge. Then we realize that actually, happiness and forgiving people is the best revenge.
No matter who you are, no matter what you did, no matter where you've come from, you can always change, become a better version of yourself.
To be brave is to love someone unconditionally, without expecting anything in return. To just give. That takes courage, because we don't want to fall on our faces or leave ourselves open to hurt.
