The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.

Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.

Innovation is not just about creating something new; it's about solving problems in ways that matter.

解释：君子所说的话，可靠而且有证据。

"The mind is its own place, and in itself can make a heaven of hell, a hell of heaven."

生活是一个不断进化和学习的过程。