A Gnani will neither talk too volubly like shallow persons, nor keep complete silence.+

The Gnani will neither talk too volubly like shallow persons nor keep complete silence.  He will talk as much as is necessary, but no more.

Silence really means keep quiet in controversial discussions because one does not know what anyone has in his mind and without semantic analysis, it is all useless, so silence is better.

The words may give different meanings at a different level of understanding. As one moves deeper and deeper one realizes the thought, the thinker, words, and the world are one in essence. Thus, in the realm of truth, the thought and words become meaningless.

A Gnani has realized the truth beyond form, time and space do not give importance to the thoughts and the words. The thoughts and words have to value only in falsehood.

The Gnani is not a sanyasi or a guru or swami or Sadhu or monk.  Gnani does not belong to any ashrams."  Both Gnani and ignorant see the multiplicity, but Gnani does not take the differences which he sees as being real. That is the difference between them. The Gnani sees the unity behind the differences within the realm of form, time, and space by knowing the form, time and space are one in essence.  A true Gnani can never renounce anything. It is impossible. He has only renounced the idea of a separation of form, time, and space.

A Gnani never claims himself as a Gnani, he guides the seekers, not posing himself as a guru, and he does not force his wisdom on others.

Manduka Upanishads: ~    Even the Gods cannot find out who is a Gnani, because he bears no external mark. Neither nudity nor the religious robe has anything to do with him.

Sage Sankara clearly indicates in the  Viveka Chudamani (2) that the Knower of the Atman (A Gnani) "bears no outward mark of a holy man." (Stanza 539).  

Sage Sankara page 482: On Gnani:~ "The knower of Brahman wears no signs. Gives up the insignia of a monk's life…his signs are not manifest, nor his behavior." 

Sage Sankara is mentioned as the  Knower of the Atman or the knower of Brahman or Brahma Gnani.

When the knower of Brahman (Gnani) wears no signs it means he does not identify himself as Guru or yogi or teacher or Swami, because a Gnani sees the form, the time and space are one in essence. Thus,  there is unity in diversity in his realization. :~Santthosh Kumaar