240
Śrīmad-Bhāgavatam
[Canto 7, Ch. 15]
TRANSLATION
It is abominable for a person living in the gṛhastha-āśrama to give up the regulative principles, for a brahmacārī not to follow the brahmacārī vows while living under the care of the guru, for a vānaprastha to live in the village and engage in so-called social activities, or for a sannyāsī to be addicted to sense gratification. One who acts in this way is to be considered the lowest renegade. Such a pretender is bewildered by the external energy of the Supreme Personality of Godhead, and one should either reject him from any position, or taking compassion upon him, teach him, if possible, to resume his original position.
PURPORT
We have repeatedly stressed that human culture does not begin unless one takes to the principles of  vaṇāśrama-dharma . Although  gṛhastha  life is a concession for the enjoyment of sex, one cannot enjoy sex without following the rules and regulations of householder life. Furthermore, as already instructed, a  brahmacārī  must live under the care of the  guru :  brahmacārī guru-kule vasan dānto guror hitam . If a  brahmacārī  does not live under the care of the  guru , if a  vānaprastha  engages in ordinary activities, or if a  sannyāsī  is greedy and eats meat, eggs and all kinds of nonsense for the satisfaction of his tongue, he is a cheater and should immediately be rejected as unimportant. Such persons should be shown compassion, and if one has sufficient strength one should teach them to stop them from following the wrong path in life. Otherwise one should reject them and pay them no attention.
TEXT 40
आत्मानं चेद् विजानीयात् परं ज्ञानधुताशयः । किमिच्छन्कस्य वा हेतोर्देहं पुष्णाति लम्पटः ॥४०॥
ātmānam ced vijānīyāt param jñāna-dhutāśayaḥ kim icchan kasya vā hetor deham puṣṇāti lampaṭaḥ
ātmānam —the soul and the Supersoul;  cet —if;  vijānīyāt —can understand;  param —who are transcendental, beyond this material