Buddhism did not begin twenty-five centuries ago as a philosophical system. Yet, insofar as its founder Gautama Siddartha made claims about the nature of self and reality, the seeds of philosophical reflection, analysis, and argument were already planted. The Buddha himself may not have been a philosopher in the strictest sense of the term: the earliest texts give us less of a philosophical system than a set of practical sermons, intriguing metaphors, and provocative parables. At around the time of the Buddha, however, a tradition of Indian thought that can be loosely identified as “Hindu” was already well underway, as can be seen in sections of some later Vedas and especially the early Upaniṣads. As the Hindu philosophers sharpened their own skills and became more systematic in their rationales, the Buddha's followers found themselves in philosophical competition with not only a set of indigenous beliefs, but increasingly also with sophisticated analyses supporting those beliefs.
