The question has often been asked; Is Buddhism a religion or a philosophy? It does not matter what you call it. Buddhism remains what it is whatever label you may put on it. The label is immaterial. Even the label ‘Buddhism’ which we give to the teachings of the Buddha is of little importance. The name one gives is inessential…. In the same way Truth needs no label: it is neither Buddhist, Christian, Hindu nor Moslem. It is not the monopoly of anybody. Sectarian labels are a hindrance to the independent understanding of Truth, and they produce harmful prejudices in men’s minds.
Walpola Rahula, What the Buddha Taught: Revised and Expanded Edition with Texts from Suttas and Dhammapada