环境中的微小变化可以导致行为的巨大改变。
The most powerful weapon you have is your voice.
权力不是工具,而是一种关系。它存在于人与人之间,而不是人本身。
Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.
Education is the foundation of conservation—people protect what they understand.