Nat Knot

“Have you ever been in love? Horrible isn't it? It makes you so vulnerable. It opens your chest and it opens up your heart and it means that someone can get inside you and mess you up.”
― Neil Gaiman, The Sandman, Vol. 9: The Kindly Ones

“Those who know do not speak. Those who speak do not know.”
― Lao Tsu, Tao Teh Ching

“To love at all is to be vulnerable. Love anything and your heart will be wrung and possibly broken. If you want to make sure of keeping it intact you must give it to no one, not even an animal. Wrap it carefully round with hobbies and little luxuries; avoid all entanglements. Lock it up safe in the casket or coffin of your selfishness. But in that casket, safe, dark, motionless, airless, it will change. It will not be broken; it will become unbreakable, impenetrable, irredeemable. To love is to be vulnerable.”
― C.S. Lewis, The Four Loves

“You pigs, you. You rut like pigs, is all. You got the most in you, and you use the least. You hear me, you? Got a million in you and spend pennies. Got a genius in you and think crazies. Got a heart in you and feel empties. All a you. Every you...'

[...]

Take a war to make you spend. Take a jam to make you think. Take a challenge to make you great. Rest of the time you sit around lazy, you. Pigs, you! All right, God damn you! I challenge you, me. Die or live and be great. Blow yourselves to Christ gone or come and find me, Gully Foyle, and I make you men. I make you great. I give you the stars.”
― Alfred Bester, The Stars My Destination