Bhagavad Gita Chapter 2.60
yatato hy api kaunteya
puruṣasya vipaścitaḥ
indriyāṇi pramāthīni
haranti prasabhaḿ manaḥ
Translation
The senses are so strong and impetuous, O Arjuna, that they forcibly carry away the mind even of a man of discrimination who is endeavoring to control them.