True happiness comes from inner satisfaction.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

想想看，人类愚蠢到会去小心地避免那些可能使他们造成伤害的臭鼬或是狐狸，却不担心狮子对他们安全造成的威胁。