Even if one's head were to be suddenly cut off, he should be able to do one more action with certainty. The last moments of Nitta Yoshisada are proof of this . Had his spirit been weak, he would have fallen the moment his head was severed. Recently, there is the example of Ono Doken. These actions occurred because of simple determination. With martial valor, if one becomes like a revengeful ghost and shows great determination, though his head is cut off, he should not die.
-Hagakure
“People are afraid of themselves, of their own reality; their feelings most of all. People talk about how great love is, but that's bullshit. Love hurts. Feelings are disturbing. People are taught that pain is evil and dangerous. How can they deal with love if they're afraid to feel? Pain is meant to wake us up. People try to hide their pain. But they're wrong. Pain is something to carry, like a radio. You feel your strength in the experience of pain. It's all in how you carry it. That's what matters. Pain is a feeling. Your feelings are a part of you. Your own reality. If you feel ashamed of them, and hide them, you're letting society destroy your reality. You should stand up for your right to feel your pain.”
-Jim Morrison
"Size matters not. Look at me. Judge me by my size, do you? Hmm? Hmm. And well you should not. For my ally is the Force, and a powerful ally it is. Life creates it, makes it grow. Its energy surrounds us and binds us. Luminous beings are we, not this crude matter. You must feel the Force around you; here, between you, me, the tree, the rock, everywhere, yes. Even between the land and the ship.”
-Yoda
I'll post more as they come to mind
