统一自然界所有力的挑战是几十年来推动理论物理学发展的动力之一。
We have seen how the most amiable are at length worn down.
The quality of an organization's customer service determines the quality of its customer loyalty.
生命的最大用处是将它用于比生命更长久的事物上。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
"The act of writing is an act of courage, a confrontation with the self."