"If we learn Buddhism wrongly we will fall into a large pit for slandering the Dharma"

"While visiting most temples in most provinces to study, I discovered a discrepancy: We, the unenlightened, believe that Buddha's teachings are all the same and if we pray sincerely, we can enter Nirvana regardless which sect we believe in; however, if we learn Buddhism wrongly we will fall into a  large pit for slandering the Dharma.: -- Reply to Lady Nun Myoho