The freedom then of man, and liberty of acting according to his own will, is grounded on his having reason, which is able to instruct him in that law he is to govern himself by, and make him know how far he is left to the freedom of his own will.
好奇心是所有伟大数学发现背后的驱动力。
在商业中,如果你不前进,就是在落后。