Taoism, in the strict definition of the Tao Te Ching and early practice, and to some degree modern practice, is less religious and more philosophical. The yin and yang (which really should be called the T'ai Chi) symbols, and the theory of Tao as a definable, spiritual presence in the universe, are accredited to the more religious version of Taoism that flourished after the 215 CE founding of the school of Tianshe.

Being philosophical and not excluding any religions, Taoism is easily accepted by almost all major religions. I know several Christians that easily follow both Christ and the teachings of Lao Tzu. There need not be any holy wars over the Tao of Perl, the saintliness of Java, the Buddha nature of Python, or the karma of C. They can all have Tao. :-)

Vilk

Update: Corrected some grammatical errors.