Shiva Purana
सर्वं स्वार्थपरं देवि त्रिलोक्यां नात्र संशयः ॥ जानीहि त्वं विशेषेण बुद्ध्या शोकं न वै कुरु ॥ १३ ॥
Everything in the three worlds, O goddess, is undoubtedly selfish. Know that you should not grieve especially with your intelligence.
english translation
sarvaM svArthaparaM devi trilokyAM nAtra saMzayaH ॥ jAnIhi tvaM vizeSeNa buddhyA zokaM na vai kuru ॥ 13 ॥
hk transliteration by Sanscript