The greatest threat to our planet is the belief that someone else will save it.

你唯一的限制是你给自己设定的限制。

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.

天然气开采的创新是满足世界日益增长的能源需求同时减少环境影响的关键。

The true aim of education is to awaken the soul.