对待别人的标准,不是他们有多坏,而是你自己有多好。
The only limit to our realization of tomorrow is our doubts of today.
The best time to plant a tree was 25 years ago. The second best time is today.
Innovation is the calling card of the future.
森林的真正价值不仅在于其木材,还在于其维持生命的能力。