Pain makes you human
If you're going through hell keep going
Look like the innocent flower, but be the serpent underneath
Regression to the mean

You either die a hero or live long enough to see yourself become the villain

Of course it is happening inside your head... but why on earth should that mean that it is not real? 
Happiness can be found, even in the darkest of times, if one only remembers to turn on the light
It takes a great deal of courage to stand up to your enemies, but a great deal more to stand up to your friends