What is the golden rule of consulting?

A common golden rule of consulting is “put the client's interest first, even when that means less short-term revenue for you.” In practice this means recommending smaller scopes when appropriate, being honest about risks and limitations, and walking away from projects where you cannot add real value. Another version is “never surprise the client”; proactively communicate progress, issues and decisions so they remain in control. For AI consulting, a crucial rule is to focus on outcomes (revenue, savings, risk reduction), not on model sophistication. If you consistently act as a trusted partner rather than a salesperson, your reputation and deal flow compound.