If you see your nature, you don't need to read sutras or invoke buddhas. Erudition and knowledge are not only useless but also cloud your awareness. Doctrines are only for pointing to the mind. Once you see your mind, why pay attention to doctrines?
Bodhidharma
(c. 440 AD - 528 AD)
Source: The Zen Teaching of Bodhidharma, p. 35
