Verse 16

प्रवृत्तं सन्निवृत्तं सद्भूयोभूयश्चिरंचिरम् ।भोगभूमिषु सर्वासु चित्तं तृप्तिं न गच्छति

In plain words

Engaging, then withdrawing, again and again, for long and long, in every field of enjoyment, the citta arrives at no satisfaction.