“Let deeds, not words, be your adorning”

O Son of Dust! Verily I say unto thee: Of all men the most negligent is he that disputeth idly and seeketh to advance himself over his brother. Say, O brethren! Let deeds, not words, be your adorning. 

(Baha'u'llah, 'The Persian Hidden Words'; included in Ruhi Book 7)

Mentioning Baha’u’llah’s name when teaching

By the righteousness of God! Whoso openeth his lips in this Day and maketh mention of the name of his Lord, the hosts of Divine inspiration shall descend upon him from the heaven of My name, the All-Knowing, the All-Wise. On him shall also descend the Concourse on high, each bearing aloft a chalice of pure light. 

(Baha'u'llah, ‘Gleanings from the Writings of Baha'u'llah’; included in Ruhi Book 6)

Attributes to exemplify

The companions of God are, in this day, the lump that must leaven the peoples of the world. They must show forth such trustworthiness, such truthfulness and  perseverance, such deeds and character that all mankind may profit by their example. 

- Baha’u’llah  (quoted by Shoghi Effendi in ‘The Advent of Divine Justice’; included in Ruhi Book 5)

Turning one's heart to the Manifestation of God

It behoveth every man to blot out the trace of every idle word from the tablet of his heart, and to gaze, with an open and unbiased mind, on the signs of His Revelation, the proofs of His Mission, and the tokens of His glory. 
- Baha'u'llah  (‘Gleanings from the Writings of Baha'u'llah’; included in Ruhi Book 4)