सुखी दुःखी विमूढोऽस्मीत्येता दुर्दृष्टयः स्मृताः ।आसु चेद्वस्तुबुद्धिस्ते तच्चिरं दुःखमिच्छसि
In plain words
'I am happy,' 'I am sorrowful,' 'I am deluded' -- these are known as wrong views. If you take these to be real, then you desire sorrow for a long time.