Beauty is the only thing that time cannot harm.
教育与收入之间的关系是复杂的,并且在不同背景下有所不同。
The greatest prosperity can exist only as the result of the greatest possible productivity of the men and machines of the establishment.
合作在推进癌症研究中至关重要。
我们所知道的很少,而我们不知道的却是无限的。
The mind once enlightened cannot again become dark.