自然法的最低内容是任何法律体系所必需的。
The minimum content of natural law is necessary for any legal system.
When you can't go back, you have to worry only about the best way of moving forward.
Sustainability is not an option; it's a responsibility we all share.
正是在我们最黑暗的时刻,我们必须集中精力看到光明。