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Cited from real sources 6 min read Updated August 2026

A framework by Ben Horowitz

Culture Is a Set of Actions: Ben Horowitz on What Values Cannot Do

Ben Horowitz takes his definition of culture from the samurai. Culture is not a set of beliefs. It is a set of actions. That swap moves the work from writing values to designing rules, because a rule is something a person can obey or break today. The test he applies is simple. Name what you do every day, then name the rule that governs it.

The definition he works from

a culture is not a set of beliefs. It's a set of actions.

Horowitz credits the samurai for the framing. Once you accept it, the poster in the lobby stops counting as culture work.

Ben Horowitz a16z Watch at 5:35

The framework

The unit of culture is a daily rule

If culture is what people do, then the question stops being what the company believes. It becomes what the company does on an ordinary Tuesday.

what do we do on a daily basis that kind of constitutes the culture and how we operate and how we think about things
Horowitz, on where to look Watch at 5:42

He is blunt about what the alternative buys you. A values poster reviewed in an annual performance cycle touches behaviour on one day of the year, and even then only in retrospect.

you put cultural values on the wall and then in the once a year in a performance review you say do you follow the culture? It's like that that means absolutely nothing
Horowitz, on the values poster Watch at 45:57

So he works the other way. Pick the thing the firm does most often, then write the rule that decides how it goes. At a16z the recurring act is meeting founders, and the rule attached to it has a price tag.

if you're late for that meeting, it's $10 a minute. It's like, well, $10 a minute. Like, well, what if I have to go to the bathroom? Yeah, you owe me $50. I don't care.
Horowitz, on the rule that carries the value Watch at 46:18

Respect the founder's time is a value. Ten dollars a minute is a rule. One of them survives a busy week. The absurdity of the number is doing work too, since a rule people repeat to each other is a rule people remember.

Practice

How do you write a rule that sticks?

Start from the recurring act, not from the adjective you wish described the company.

1

List what the company actually does every day.

Meetings, handoffs and customer calls. Culture lives in the repeated act. That list is your working surface.

2

Convert each value into a behaviour with a threshold.

Horowitz's rule is that vague values are meaningless while specific ones are enforceable. If nobody can tell whether they broke it, you wrote a value and not a rule.

3

Make it odd enough to repeat.

A fine of ten dollars a minute gets retold. A memo about punctuality does not. The strangeness is what carries the rule to the next hire.

4

Set one guardrail with no exceptions.

At a16z nobody may bad-mouth an entrepreneur the firm works with. A zero-tolerance line tells people which value the firm will not trade away under pressure.

5

Confront the behaviour, never the person.

His confrontation framework asks for honesty aimed at a specific act with a specific example. Character judgements end the conversation; a named behaviour keeps it open.

6

Expect the job to stay messy.

Horowitz holds that management is situational and emotional, not procedural. That is why he thinks most management books fail. The rules are the scaffolding, not the answer.

Conditions

When do the rules stop working?

Rules on their own are not the whole system. Horowitz keeps principles above them, and the rules exist to make the principles real.

there's got to be behaviors that support the principles
Horowitz, on how the two layers connect Watch at 51:08

A rule with no principle behind it is a policy, and people follow it for as long as someone is counting. The pairing is the point.

Works best when

  • The behaviour repeats often enough for a rule to bite
  • Leadership is subject to the rule on the same terms as everyone else
  • The rule maps to a principle you can state in one sentence
  • You are early enough to set the norm before a different one forms

Fails when

  • The rule is odd but points at nothing, so it reads as a gimmick
  • Enforcement is selective, which teaches the real rule instead
  • You dictate rules onto a team that already has strong working norms
  • You treat the rulebook as the whole of management

The second one does the most damage. A rule enforced on some people and not others still teaches a culture, and the lesson is about who is exempt. Underneath sits a harder problem: a team can have rules and still never say the hard thing out loud. Patrick Lencioni's five dysfunctions starts at the trust that makes enforcement survivable.

Primary sources

Where Horowitz discusses this

Two recent sessions. The a16z conversation is where he gives the definition in one line. The My First Million interview is the longer working example, including the fine and the guardrail behind it.

5:35
Timestamp

Ben Horowitz · a16z

Culture as Action: Transforming Organizations

"a culture is not a set of beliefs. It's a set of actions."
46:18
Timestamp

Ben Horowitz · My First Million

The Philosophy of Cultural Action

"if you're late for that meeting, it's $10 a minute"
45:57
Timestamp

Ben Horowitz · My First Million

Why Values on the Wall Do Nothing

"that that means absolutely nothing"
51:08
Timestamp

Ben Horowitz · My First Million

Defining Company Culture Through Behavioral Standards

"there's got to be behaviors that support the principles"

Where experts disagree

Where operators disagree: are values written first, or found?

Ben Horowitz

defines culture from day one through rules specific enough to enforce, imposed top-down. Respect for a founder's time becomes a $10-a-minute fine for lateness. His claim is that specificity is the whole mechanism, because a vague value cannot be obeyed or broken and therefore changes nothing.

Shaan Puri and Alex Hormozi

argue against pre-defining values at all. Watch what the company already does under pressure, then name and codify the behaviours that emerged on their own. On this reading a dictated value competes with the real norm and usually loses.

Both camps agree vague values are useless, so the split is about timing rather than specificity. A company with no history has nothing to observe, which is Horowitz's case for writing rules on day one. A company that already has working norms risks overwriting them, which is the case for naming what is there. The failure mode Horowitz warns about applies to both: a rule enforced on some people and not others teaches a culture about who is exempt.

Useful? Send it to whoever is drafting the values deck this quarter.

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