दुःखेष्वनुद्विग्नमनाः सुखेषु विगतस्पृहः ।
"One whose mind remains undisturbed in misery and completely free from attachment in pleasure is a sage."
Philosophical Context
The ultimate litmus test of character. When disaster strikes, you do not collapse into self-pity; when massive triumph arrives, you do not inflate into arrogance.