痛苦是一种语言，只有经历过的人才能理解。
Pain is a language that only those who have experienced it can understand.
"To be a human being means to possess a sense of guilt."
Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.
生活中最好的东西是免费的。
最令人兴奋、最具挑战性和最重要的关系是你与自己的关系。