Vijnana Bhairava Tantra
समः शत्रौ च मित्रे च समो मानावमानयोः ॥ ब्रह्मणः परिपूर्णत्वादिति ज्ञात्वा सुखी भवेत् ॥ १२५ ॥
One who makes no distinction between friend and foe, honour and dishonour, knowing Brahman to be full in itself (all pervading), becomes supremely happy.
english translation