An intelligent man should control all his senses. The three qualities of Goodness, Darkness and Ignorance are always attached to living creatures.
इन्द्रियाणि च सर्वाणि विजेतव्यानि धीमता॥ सत्त्वं रजस्तमश्चैव प्राणिनां संश्रिताः सदा।