Poor is the man whose pleasures depend on the permission of another.
可怜的是那些快乐取决于他人许可的人。
儿童的一切教育都必须遵循一个原则,即帮助孩子身心自然的发展。
Safety is not just a policy, it's a culture that must be embedded in every operation we undertake.
社会结构的研究是构成社会的社会关系系统的研究。