This is the beauty of the Buddha’s teaching: It is so complete that nothing has to be added to it. If you just practice sīla, samādhi and paññā, that is enough. And it is so pure that nothing has to be taken out. Nobody can find anything wrong in sīla. Nobody can find anything wrong in samādhi. Nobody can find anything wrong in paññā. People are sure to accept it. And they are accepting it.
If we make a sect out of the Buddha’s teaching, a blind faith or a cult or philosophy, then difficulty arises. Every sect will have its own philosophy, cult, belief, dogma, rites, rituals, ceremonies, and they all differ.
But when you take the essence of the Buddha’s teaching—sīla, samādhi, paññā—everyone is bound to accept it because it is so scientific.
A Buddha teaches Dhamma. A Buddha does not establish a particular religion. A Buddha is not interested in establishing a sect.
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Sīla, samādhi, and paññā represent the threefold training in Theravāda Buddhism, forming the core framework for spiritual development and the path to liberation (nibbāna). These three elements—moral virtue, concentration, and wisdom—are not isolated practices but deeply interconnected aspects of a unified path. Together, they guide practitioners in purifying the mind, overcoming defilements (kilesas), and realizing the true nature of reality.
American Buddhist Net 