You are easy to pretend to care about.

The writer's secret is not inspiration—for it is never clear where it comes from—but stubbornness, endurance.

The improver of natural knowledge absolutely refuses to acknowledge authority as such.  

The steel industry is tough, but resilience is what separates the best from the rest.

所谓爱国心，是指因你生为这个国家的国民，相信这个国家比其他一切的国家高贵优越。

追求数学真理是一场永无止境的冒险。