Modifiers matching doctrine:

• central,
• christian,
• religious,
• buddhist,
• theological,
• mystical,
• biblical,
• philosophical,
• critical,
• ethical,
• fundamental,
• new,
• single,
• traditional,
• esoteric,
• major,
• moral,
• ascetic,
• comprehensive,
• key,
• larger,
• crucial,
• important,
• modern,
• legal,
• western,
• political,
• catholic,
• basic,
• foreign,
• eastern,
• common,
• fundamentalist,
• irrational,
• secular,

Simple categories matching philosophical:

• general,
• philosopher,
• theme,
• system,
• person,
• matter,
• doctrine,
• idea,
• problem,
• poet,
• teacher,
• economist,
• guru,
• heritage,
• writer,
• detective,
• singer,
• feminist,
• notion,
• concept,
• religion,
• nature,
• humorist,
• position,
• works,
• category,
• composer,
• teaching,
• tradition,
• speculation,
• guitarist,
• values,
• revolutionary,
• monk,
• intellectual,
• determinism,
• periodical,
• recluse,
• liberalism,
• discipline,
• preacher,
• work,
• development,
• novelist,
• belief,
• ethics,
• study,
• logic,
• communist,
• perception,
• argument,
• campaigner,
• scholar,
• conception,
• consequence,
• theory,
• science,
• abstraction,
• opposition,
• exile,
• issue,
• subject,
• skepticism,
• mathematician,
• topic,
• thought,
• principle,
• historian,
• naturalism,
• scepticism,
• movement,
• phenomenology,
• tendency,