国家的力量对于任何社会的成功都至关重要。
The strength of the state is crucial for the success of any society.
The true artist is always searching for the meaning of life.
Freedom is never voluntarily given by the oppressor； it must be demanded by the oppressed.
Collaboration across borders and industries is the key to solving the energy challenges of our time.
跨越国界和行业的合作是解决我们这个时代能源挑战的关键。
在我来这里之前，我对这个主题感到困惑。听了你的讲座后，我仍然感到困惑。但是在一个更高的层次上。