आपतत्सु यथाकालं यथादेशं यथाक्रमम् ।सुखदुःखेषु न क्षोभमेति भूभृदृतुष्विव
In plain words
Amid pleasures and pains that befall him in their time, their place, and their sequence, he goes to no agitation — as a mountain is not stirred by the passing of the seasons.