种树的最佳时间是20年前，其次是现在。

To be happy is only to have freed one's soul from the unrest of unhappiness.

However difficult life may seem, there is always something you can do and succeed at.

The wild doesn’t reward the strongest or the fastest. It rewards the most adaptable.

未来不是我们进入的东西。未来是我们创造的东西。