Conceal the sins of others

If ye become aware of a sin committed by another, conceal it, that God may conceal your own sin. He, verily, is the Concealer, the Lord of grace abounding. 

(Baha'u'llah, from a Tablet addressed to Napoleon III, ‘The Summons of the Lord of Hosts’) 

To become “a source of social good”

…the honor and distinction of the individual consist in this, that he among all the world's multitudes should become a source of social good. 

(‘Abdu’l-Baha, ‘The Secret of Divine Civilization’; Ruhi Book 5)

How to attain “the shores of the ocean of true understanding”

No man shall attain the shores of the ocean of true understanding except he be detached from all that is in heaven and on earth. Sanctify your souls, O ye peoples of the world, that haply ye may attain that station which God hath destined for you… 

(Baha’u’llah, ‘The Kitab-i-Iqan’; Ruhi Book 4)

Promise of assistance from Baha’u’llah

Verily, We behold you from Our Realm of Effulgent Glory, and shall graciously aid whosoever ariseth for the triumph of Our Cause with the hosts of the Celestial Concourse and a company of Our chosen angels. 

(Baha’u’llah, quoted by Shoghi Effendi in a letter dated 21 January 1922; ‘Baha’i Administration’) 

Harmony, love and purity of motive

… whatsoever thing is arranged in harmony and with love and purity of motive, its result is light, and should the least trace of estrangement prevail the result shall be darkness upon darkness. 

(‘Abdu’l-Baha, quoted by Shoghi Effendi, from a letter dated March 5, 1922; ‘Baha’i Administration’)