The capitalist achievement does not typically consist in providing more silk stockings for queens but in bringing them within the reach of factory girls in return for steadily decreasing amounts of effort.

海洋的健康反映了地球的健康。我们必须立即采取行动保护两者。

农业的未来在于平衡传统与尖端创新。

In the midst of winter, I found there was, within me, an invincible summer.

We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.