缓慢的程度与记忆的强度成正比；速度的程度与遗忘的强度成正比。
Coal mining built modern Britain, and we must respect that heritage even as we transition to cleaner energy sources.
The decline of violence may be the most significant and least-appreciated development in the history of our species.
人心比万物都诡诈，坏到极处，谁能识透呢？
The advancement of mathematics is through generalization.