人类最美丽和最丑陋的倾向都不是固定生物本性的一部分，而是创造人类的社会过程的结果。
The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.
A sustainable coal industry is possible if we commit to the right technologies.
孩子们喜欢安静练习与自由选择。
【译文】 子夏说：“广泛学习并且不停地朝着目标前进，认真地提出问题并且联系实际去思考，仁就在其中了。”
Change is not merely necessary to life—it is life.