The only limit to our realization of tomorrow will be our doubts of today.
The individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.
近似算法证明了在实现实际解决方案中妥协的力量。
国家本质上是侵略性和扩张主义的,因为它们存在于一个无政府状态的国际体系中,没有更高的权威来约束它们。