Only four logically defensible spiritual paths.

As far as I see it there are only four logically defensible spiritual paths a person may walk.

1. Accept yourself as the highest authority and pursue whatever interests you, including perhaps the rejection of all religious thought whatsoever.
2. Accept your logic as the highest authority and rigorously study every single religious system in depth to determine which is most likely, plausible, or important.
3. Accept your parents or your culture of origin as your highest authority and give yourself completely to their worldview.
4. Accept one single authority and follow it relentlessly.

Which one is yours? What is your authority? How do you follow it?