The only limit to our realization of tomorrow is our doubts of today.
因此,人们联合成立共和国、置身于政府之下的伟大和主要目的是保护他们的财产。
It is absurd to say that we have a duty to be benefited.
挑战是伪装的机会;用勇气和智慧拥抱它们。
In scientific work, those who refuse to go beyond fact rarely get as far as fact.