没有自由的安全,叫做监狱。
Innovation in natural gas extraction is essential for meeting the world's growing energy demands.
解释:不通过学习而能自己知道的,不去请教他人而能自己通晓的,从古到今没有这样的事。
The power of literature lies in its ability to make us feel less alone in the universe.
Every sensation we feel is the result of intricate molecular mechanisms.