- to regard the four corners of the world all as home (idiom)
- to feel at home anywhere
- to roam about unconstrained
- to consider the entire country, or world, to be one's own
“settle down in any corner of the world for a certain cause; make one's home wherever one is”
原指帝王占有全国。后指什么地方都可以当作自己的家。指志在四方，不留恋家乡或个人小天地。
出处 《汉书·高帝记》：“且夫天子以四海为家。”
示例 我们是～的，我们是以一切人民为兄弟姐妹的。（孙犁《看护》）