没有比哲学家更无畏的航海者了。
There is no more intrepid a voyager than the philosopher.
可持续发展不是一种选择,而是我们对后代的责任。
解释:向善就好像攀登山峰一样难,向恶就好像山石坍塌那样容易。
I don't like to compare myself to others. I just try to be the best I can be.
这就是人类第一个划时代的变革,人类建立了家庭,形成了某种形式的私有制,也给自己带来了无穷无尽的争吵和冲突。
Virtues are acquired through endeavor, which rests wholly upon yourself.