C2V11

C2V11: SHREE KRISHNA is saying to Arjun that he is thinking on the things which are not worth thinking but talking like a learned person. When we remorse for the dead, we contemplate what we could do to that person but did not do and regarding the remorse on an alive person we generally think that what the person could have been but what the person actually has become. In reality, these thinking make no effect on none of the dead or alive. So no remorse no contemplation on dead or alive would lead us to any wisdom.
Say for instance Arjun is contemplating about his cousin Duryodhan and expecting him to behave like Yudhisthir. This contemplation will never change Duryodhan rather it may cause misleading action taken by Arjun.