我心中装着全世界的梦想。
从长远来看,经济前景对那些灵活且消息灵通的人是有利的。
Science should serve humanity, not the other way around.
To understand the meaning of a sentence, we must consider the speaker's intention and the context of the utterance.
The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic.