Why be unhappy about something if it can be remedied? And what is the use of being unhappy about something if it cannot be remedied?
ShantidevaWhatever happens, I will not let my cheerfulness be disturbed. Being unhappy won't get me anywhere and will dissipate all my goodness. Why be unhappy about something if you can change it? And if you can't, how will being unhappy help?
Shantideva