爱屋及乌出处：
爱屋及乌，汉语成语，拼音是e敬wú zhī wú，意思是指爱心可以扩展到身边的人和事物。出自《红楼梦》第五回：“古人云，爱屋及乌，斯言善矣。”
在红楼梦中，曹雪芹描绘了贾宝玉与林黛玉之间的感情。贾宝玉对林黛玉十分关爱，但 his love for林黛玉 also extended to his friends and family members. He was very protective of林黛玉 and would do anything to help her. In this way, his love for林黛玉 was not only about her, but also about the people around her.
这个成语现在已经成为了一个常用的词语，用来形容人们对他人的爱心和关心可以扩展到周围的一切。当我们关爱一个人时，我们也应该关心和爱护周围的人们，这样才能真正体现爱心的 extendable.
