Bhagavad Gita Chapter 2.70
samudram āpaḥ praviśanti yadvat
tadvat kāmā yaḿ praviśanti sarve
sa śāntim āpnoti na kāma-kāmī
A person who is not disturbed by the incessant flow of desires—that enter like rivers into the ocean, which is ever being filled but is always still—can alone achieve peace, and not the man who strives to satisfy such desires.