Ramana MaharshiIf one remains merely as consciousness [that is, as ‘I am’] ignorance will not exist. Hence, ignorance is false; Self-consciousness alone is real. When correctly known, it is ignorance to say that there is ignorance. Verily, pure consciousness is our nature. Thus should you know.

Ramana Maharshi

Brahma Sūtras Reference Materials:

Video/Audio Lectures

Swami Paramarthananda
390 classes (~55 mins each)

Swami Dayananda Saraswati
99 classes (~60 mins each)

Swami Tattvavidananda
14 classes (search for "Adhyasa Bhasyam" on the linked page)

Swami Viditatmananda
99 classes on First Four Sutras (~90 mins each)

002 Brahma sūtra Chathsutri

Swami Paramananda Bharti
7 classes on Adhyasa Bhashya or Shankaracharya's Intro (~60-90 mins each)

Adhyasa Bhashyam 6