Do not cynically laugh at the good that others do. Inquire; but, do not insult. Respect the sincerity of the other man; respect also elders and men with more experience than you. In company, behave in a well mannered way, showering brotherhood and joy on all around you. Do not cynically talk about the spiritual aspirants and never discuss the spiritual standards reached by others.
(From : Sai Veda, The Word of God, sayings of Bhagavan Sri Sathya Sai Baba)