Confucius - The Doctrine of the Mean - 10
Type of Spiritual Experience
attest əˈtɛst/ verb
past tense: attested; past participle: attested 'provide or serve as clear evidence of'.
A description of the experience
500 BC THE DOCTRINE OF THE MEAN Confucius translated by James Legge 
However excellent may have been the regulations of those of former times, they cannot be attested. Not being attested, they cannot command credence, and not being credited, the people would not follow them.