关于神,我不知道他们是否存在,也不知道他们的形态是什么样子的;因为有许多事情阻碍了确切的知识,包括事物的晦涩和人类生命的短暂。
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.