译文:即使处在平安的环境,也要时刻想到可能会有突如其来的危险。
夜晚是一座伟大的图书馆,但星星是它的书籍。
All things are possible until they are proved impossible and even the impossible may only be so, as of now.
儿童书籍应该既是一面镜子,也是一扇窗户。