"The only real failure in life is not to be true to the best one knows."

解释：不注意天时，财富就不能增长；不注意地利，粮食就不会充足。

The political liberty of the subject is a tranquility of mind arising from the opinion each person has of his safety.

我不害怕失败，我害怕不去尝试。

时代在变。

你只需要写出一句真实的句子。写出你所知道的最真实的句子。