If truth shall kill them, let them die. ——Kant Virtue is knowledge, and vice is ignorance. Virtue is reached by getting rid of ignorance. ——Socrates Ignorance is not innocence, but sin——Robert Browning Ignorance is ignorance; no right to believe anything is derived from it.——Sigmund Freud 如果连自由和权利都弄不明白就别叨叨了。 “自由不是你想做什么就做什么，是你不想做什么就不做什么。”——伊曼努尔·康德 黑格尔谈论三层自由： 1.不被束缚的自由 2.能实践理性和绝对意志的自由 3.公共自由（能以前两者和他人进行交流与共在）