Our school does not subscribe to or promote any form of organised religion, philosophy or faith.
The study of taoism and zen can be likened to physics or chemistry; they are more about science than religion in the conventional sense.
Neither are 'philosophical' in nature - both are simply the observation of reality.
If you think of taoism as being an 'ism', as being some sort of religion or philosophy, study further.
You have perhaps misunderstood.