There has to be evil so that good can prove its purity above it.
Work out your own salvation. Do not depend on others.
There's no regret. You can't regret. I mean I've felt regret but I've also...
You can't move so fast that you try to change the mores faster than people can accept it. That doesn't mean you do nothing but it means that you do the things that need to be done according to priority.
