经营婚姻的最佳时间是在你拥有婚姻之前。
Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.
让儿童参与工作,能增强他们对生活环境的责任感。
In peace, sons bury their fathers. In war, fathers bury their sons.
To live is the rarest thing in the world. Most people exist, that is all.