ŚB 1.1.6

https://vedabase.io/en/library/sb/1/1/6/

A gosvāmī, or the bona fide representative of Śrī Vyāsadeva, must be free from all kinds of vices. The four major vices of Kali-yuga are (1) illicit connection with women, (2) animal slaughter, (3) intoxication, (4) speculative gambling of all sorts. A gosvāmī must be free from all these vices before he can dare sit on the vyāsāsana. No one should be allowed to sit on the vyāsāsana who is not spotless in character and who is not freed from the above-mentioned vices. He not only should be freed from all such vices, but must also be well versed in all revealed scriptures or in the Vedas. The Purāṇas are also parts of the Vedas. And histories like the Mahābhārata or Rāmāyaṇa are also parts of the Vedas. The ācārya or the gosvāmī must be well acquainted with all these literatures. To hear and explain them is more important than reading them.

I still drink regular coffee.
My battle against cigarettes is finished, happily.
I work step by step.

The Goswami path is my guide.
May it benefit all.

k. gabriel