The spirit is willing, but the flesh is weak willing, spirit, flesh, The, weak

x-ace

The spirit is willing, but the flesh is weak. 心有余而力不足。
　　Spirit, the part of a person's mind that is able to think and will be talked about as clearly opposed to the body. (与肉体相对而言的)心灵，精神。
　　Flesh, the physical human body as opposed to the mind or soul. (人的)肉体。
这名话源出《圣经》，有力不从心的意思。