'self-confidence' of a Buddha is fourfold.

He is confident:

• 1. to have attained to a perfect Enlightenment of which it cannot be said that it omits anything essential to it;

• 2. to have destroyed all fermentations (āsava), leaving none that can be said to be undestroyed by him;

• 3. that what were declared by him as obstacles to liberation are undeniably such;

• 4. that his teaching fulfils its purpose of actually leading to final liberation from suffering.

See A.IV.8; VII.58; M.12.