mantra (MAN-truh) noun
1. A sound, word, or phrase that is repeated in prayer and is believed to have mystical powers.
2. An often repeated word or phrase that is closely associated with something; a slogan, byword, or a watchword.
[From Sanskrit mantra (thought, formula). Ultimately from Indo-European root men- (to think) which is the source of mind, mnemonic, mosaic, music, mentor, money, and mandarin.]
"These tips go beyond the 'test early and often' mantra and will improve your IT organization's testing capabilities."
-- Meridith Levinson; Testing, 1, 2, 3; CIO (Framingham, Massachusetts); Nov 15, 2005.
(Sanskrit is an ancient language of India and Hinduism.)