翻译:各种事情根据类别而聚集,万物根据类别而分为不同的群体。
古代的学者,为自己才学不高而担忧,就发奋学习,迎头赶上;现在的文士,为自己才学不高而羞愧,就隐满短处,避忌批评。
You can't change what you are, only what you do.
I'm not afraid of the dark; I'm afraid of what's in it.
农业效率不应以牺牲生物多样性为代价。
We've learned that change is necessary for growth.