The true value of a forest is measured not in board feet, but in biodiversity.

人心是一个谜，甚至对它自己也是如此。

On television， all subject matter must be presented as entertainment.

If we don’t take responsibility for our plastic waste today, we’ll leave a burden too heavy for future generations to bear.

糟糕战略最常见的来源是无法做出选择。

大缓和时期是一段显著的经济稳定时期，但它为大衰退埋下了种子。