“不以物喜，不以己悲”翻译成英文

这句话运用了互文见义的修辞 故可以解释为 不因外物（好坏）或个人（得失）而或喜或悲
即：
Not to be happy or sad because of other things or yourself.

not pleased by external gains, not saddened by personnal losses

exaltation without external gains,dump without personnal losses

这个是字面意思...意译的话：keep a peaceful mind

not be held by outside things.

赞同UU过客的说法

not to objects, not to their own grief