数学不是一项观赏性运动;要理解它,必须积极参与其中。
做你自己,因为别人已经有人做了。
可持续林业不是成本,而是对韧性的投资。
I'm not a person who thinks that everything happens for a reason, but I do believe that if you work hard and stay true to yourself, good things will come.