Lesson One: Declare Your Purpose: A Step-by-Step Guide to Creating Your Theory of Change

Start by getting very clear about who YOU are. 

Why are you doing this? Honestly.

Who benefits if you are wildly successful? How is the world going to change because of your work?

Dare yourself to declare your Theory of Change to the world.


What is a Theory of Change?

A Theory of Change (ToC) is a powerful tool used by social enterprises, nonprofits, and certified B Corporations to define their impact. It’s more than a mission statement—it’s a clear, actionable articulation of the problem you aim to solve, the method you’ll use, and the future you’re striving to create.

For individuals and organizations alike, writing a Theory of Change helps clarify purpose, direction, and strategy. It’s an honest declaration of why your work exists and how it contributes to a greater good.


Exercise: Writing Your Theory of Change

Step 1: Reflection

Before you begin crafting your Theory of Change, take a moment to reflect on these key questions:

  • What is the central problem in the world that you are committed to addressing?
  • How does your unique approach contribute to solving this problem?
  • What will change if you are successful? Who will benefit? How will the world be different?

Step 2: Gather Your Inspiration

1. Identify Your Core Values

Make a list of adjectives that describe the essence of your work and vision. These might be words like:

  • Equitable
  • Transformative
  • Regenerative
  • Inclusive
  • Collaborative
  • Empowering

2. Find Three Quotes That Resonate With Your Mission

Think of lines from literature, leaders, or thinkers who inspire your work. Here are a few examples:

  • Adrienne Maree Brown – “What we practice at the small scale sets the pattern for the whole system.”
  • Arundhati Roy – “Another world is not only possible, she is on her way. On a quiet day, I can hear her breathing.”
  • Buckminster Fuller – “You never change things by fighting the existing reality. To change something, build a new model that makes the old model obsolete.”

Step 3: Construct Your Three-Part Theory of Change

A Theory of Change follows a simple but profound structure:

  1. This is what’s wrong with the world/the challenge that faces individuals I work with. (Define the problem.)
  2. Through x and y  (Explain your method and impact.)
  3. This will be the result. (Articulate the future you are building.)

Examples of Theories of Change from B Corps & Social Enterprises

1. Patagonia (Certified B Corporation – Sustainable Apparel)
“The world is facing an environmental crisis, with rampant overconsumption and waste devastating ecosystems. Through ethical manufacturing, activism, and funding grassroots environmental groups, we create high-quality, sustainable apparel that reduces harm and inspires others to protect the planet. We envision a world where business operates in service of the Earth, not at its expense.”

2. Hide/Seek Communications (Strategy and Coaching)

“In an era of social isolation and digital overload, many struggle to find authentic connection and purpose. Through mindfulness training and storytelling workshops, I help individuals and organizations cultivate deeper presence, resilience, and human connection. I envision a world where technology supports, rather than replaces, our shared humanity.”

3. Greyston Bakery (Certified B Corporation – Inclusive Employment)
“Unemployment and poverty limit economic mobility for millions of people. Through our open hiring model, we provide jobs to anyone willing to work, regardless of their background. By creating pathways to employment and self-sufficiency, we foster a world where opportunity is accessible to all.”

4. Onwards Up ( Housing Justice)
“A lack of affordable housing and employment leaves thousands without stable shelter. Through grassroots collaborations, we train homeless youth in carpentry and life skills, transforming shelters into sustainable neighborhoods. We imagine a world where housing justice is a reality, not just a vision.”

5. IDEO.org (Human-Centered Design for Social Impact)
“Systemic inequities make it difficult for communities to thrive. Through human-centered design, we co-create solutions with communities, ensuring they have the tools and agency to drive their own change. We envision a world where design fosters equity, dignity, and sustainable development.”


Your Turn: Draft Your Theory of Change

Here’s a template to guide you:

  • This is what’s wrong with the world: [Describe the pressing issue you are addressing.]
  • Through [approach], I [action], resulting in [impact].
  • A world where [future state] is not only possible: it’s happening.

Making Your Theory of Change Actionable

Once you have your draft, ask yourself:

  • Is it clear and specific? Avoid jargon and ensure it’s understandable to a broad audience.
  • Does it inspire action? A Theory of Change should be both aspirational and practical.
  • Can it guide decision-making? Use it to assess whether new projects align with your vision.

Refining your Theory of Change over time will help you stay aligned with your mission and create the greatest impact.


Final Thought

Writing a Theory of Change is an act of courage. It’s a declaration of your commitment to creating a better world. Whether you’re an individual, a small business, or a large social enterprise, defining your purpose in this way allows you to move forward with clarity and conviction.

So, what’s your Theory of Change?

Write it down. Refine it. Share it. Then, live it.