The United States, in their expansive capacity, are capable of containing within their limits the whole population of the earth.

The theory of probabilities is at bottom nothing but common sense reduced to calculus.

The city is a living organism that constantly evolves.

继续前进，继续相信，永不放弃。

缺乏美感的理论不太可能是正确的。

Quality is the lifeline of an enterprise, and it should never be compromised.