The Concept of a Rule and Social Practices
From the The Concept of Law - Hart's chapter 6 curriculum
TL;DR
Hart distinguishes between merely habitual behavior and following a rule by introducing the idea of a "critical reflective attitude." This attitude involves a social pressure to conform and a view of deviations as lapses or faults. Understanding this distinction is key to grasping the internal aspect of rules, which is crucial for a stable legal system.
1. The Mental Model
Think of following a rule not just as doing what everyone else does, but as having a specific mindset about that action. It's about seeing the action as a standard, and deviations as something that shouldn't happen, warranting criticism.
2. The Core Material
Hart wants us to understand what makes a social rule different from a social habit. If everyone goes to the cinema on Saturday, that's a habit. But if everyone should go to the cinema on Saturday, and they feel criticism if they don't, that's moving towards a rule.
Habits vs. Rules

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- Habits: These are just regular, convergent behaviors. If everyone claps at the end of a play, that's a habit.
- No one has to clap.
- If someone doesn't clap, it's not seen as a fault.
- There's no social pressure to conform.
- It doesn't serve as a standard for behavior.
- Rules: These involve three key elements that habits don't.
- General conformity: People generally behave in a certain way.
- Internal aspect: This is the crucial part. At least some members of the group see the behavior as a general standard that ought to be followed.
- Critical reflective attitude: This means deviations from the rule are seen as faults, giving rise to criticism, and that criticism is considered legitimate. There's also a pressure for conformity.
The Internal Aspect

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The "internal aspect" of rules is fundamental for Hart. It means that people don't just act in a certain way because they fear punishment (the "external aspect"); they act in that way, and expect others to, because they accept the rule as a standard of conduct. This acceptance isn't necessarily moral approval; it can be for various reasons, including prudence or simply a desire for order.
This internal point of view is what allows officials and citizens to recognize when a rule exists and to use it as a guide for behavior and as a basis for criticism. Without this, a legal system would just be a series of commands backed by threats, which Hart argues is insufficient.
flowchart TD
A["Convergent Behavior (Many people do X)"] --> B{Is there a 'Critical Reflective Attitude'?};
B -- No --> C["Social Habit (e.g., clapping after a play)"];
B -- Yes --> D["Social Rule (e.g., stopping at red light)"];
D --> E["Internal Aspect (Viewed as a standard)"];
D --> F["Social Pressure for Conformity"];
D --> G["Criticism for Deviation (Seen as legitimate)"];
3. Worked Example
Let's consider the rule that you shouldn't steal.
- General conformity: Most people don't steal.
- Internal aspect: People generally accept that stealing is wrong or that there's a valid reason not to steal, viewing "not stealing" as a standard of conduct. They don't just avoid stealing because they're afraid of getting caught; they understand why it's generally prohibited.
- Critical reflective attitude: If someone does steal, others will criticize them. Law enforcement will act. Even the thief themselves might feel guilt or understand that their action is a "fault." This criticism isn't just an annoyance; it's seen as a legitimate response to violating an accepted standard. This forms a social pressure against stealing.
Contrast this with a "habit" like everyone in a certain office brings their own coffee cup. If someone forgets theirs, no one criticizes them, nor is it seen as a fault. It's just what people happen to do.
4. Key Takeaways
- A social rule is more than just a general pattern of behavior; it involves a shared understanding and acceptance.
- The "internal aspect" refers to people viewing the behavior as a standard for conduct, not just as something they regularly do.
- A "critical reflective attitude" is crucial: deviations are seen as faults, warranting legitimate criticism.
- Without this internal aspect, a legal system would lack its binding force and authority, relying purely on fear of sanctions.
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This distinction helps explain how rules guide behavior and justify criticism, unlike mere habits.
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Common mistakes to avoid:
- Confusing a rule with a mere prediction of behavior (e.g., "people will probably stop at red lights" vs. "people should stop at red lights").
- Assuming the internal aspect always means moral approval; it can simply be acceptance of a standard.
- Forgetting that the critical reflective attitude implies legitimate criticism, not just any negative reaction.
- Overlooking that the existence of a rule requires some people to hold the internal point of view, especially officials.
5. Now Try It
Think about a common practice in your university or workplace. Is it a social habit, or does it qualify as a social rule according to Hart's criteria? Write down why, focusing on whether there's a "critical reflective attitude" and an "internal aspect" among those involved.
What success looks like: You should be able to clearly articulate why your chosen practice is either a habit or a rule, using Hart's specific concepts of general conformity, internal aspect, and critical reflective attitude.
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