The man who loves the nature harmonizes both inner and outer, even after growing up, he will keep his childness.

• 1 知识是一宝库，而实践就是开启宝库大门的钥匙。Knowlege is a treasury while practice is the right key to open it.；2 热爱大自然的人内外感觉协调一致，即使进入成年后依然保持着童心。