सुखमापतितं सेव्यं दुःखमापतितं यथा।
चक्रवत् परिवर्तन्ते दुःखानि च सुखानि च॥
sukhamāpatitaṁ sevyaṁ duḥkhamāpatitaṁ yathā|
cakravat parivartante duḥkhāni ca sukhāni ca||
A similar saying:
http://sanskritpearls.blogspot.com/2010/05/may-21st.html
भाषासु मुख्या मधुरा गीर्वाणभारती
सुखमापतितं सेव्यं दुःखमापतितं यथा।
चक्रवत् परिवर्तन्ते दुःखानि च सुखानि च॥
sukhamāpatitaṁ sevyaṁ duḥkhamāpatitaṁ yathā|
cakravat parivartante duḥkhāni ca sukhāni ca||
A similar saying:
http://sanskritpearls.blogspot.com/2010/05/may-21st.html
As the man accepts happiness so he should welcome sorrow which falls on him, because happiness and sorrow go hand in hand as if they were in one wheel.
best