Buddhism is the study and practice of the teachings of the Buddha. One could just as easily be said to be studying the Dharma as to be studying Buddhism. It is practicing what the Buddha taught, hoping it will accomplish in one’s own life what it did in his. I see it as a process rather than a belief system. It certainly doesn’t fit the Judeo-Islamic-Christian definition of a religion! It’s more akin to a medical diagnosis: here is the problem, here is the cause, there is a cure, here is how to heal yourself.