可持续性不是一种选择,而是我们对下一代的责任。
To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.
森林的真正价值不能仅用板材英尺来衡量。
The only limit to our realization of tomorrow is our doubts of today.
La verdadera ciencia enseña, sobre todo, a dudar y a ser ignorante.