I cannot but be astonished that Socrates, after having so often repeated to his fellow citizens that he did not pretend to any wisdom, but had been appointed by the gods to a mission of benevolence towards them, should have been condemned to death.
数学研究是所有智力和精神进步不可或缺的基础。
我们都是自己过去的侦探。
To be free is to accept responsibility for one's own life.