知识是人类的最高财富，而分享知识则是最高的慷慨。
Knowledge is the highest wealth of humanity, and sharing knowledge is the greatest generosity.
If liberty means anything at all, it means the right to tell people what they do not want to hear.
The past is a foreign country; they do things differently there.
我们需要创造力来改变社会。
激发生命，让生命自由发展，这是教育者的首要任务。