While public support is vital, movements don't just happen. They require specific individuals who act as catalysts. The British abolitionist movement, for example, is inseparable from Thomas Clarkson, who was the first person to envision a national public campaign and dedicate his life to it, turning a latent issue into a powerful political force.

Anti-slavery movements thrived in 'societies with slaves,' like Pennsylvania, rather than 'slave societies,' like Barbados. In Pennsylvania, slavery existed, so people were confronted with its morality, but the economy wasn't dependent on it. This allowed for questioning without risking the collapse of the entire socio-economic order.

The project of creating AI that 'learns to be good' presupposes that morality is a real, discoverable feature of the world, not just a social construct. This moral realist stance posits that moral progress is possible (e.g., abolition of slavery) and that arrogance—the belief one has already perfected morality—is a primary moral error to be avoided in AI design.

Hope is not just a personal suspension of disbelief. It is a communal resource built from small, everyday interactions—like giving someone your full attention or witnessing kindness between strangers. These moments are 'hope in action' and create the foundation for pursuing larger, more challenging collective goals.

People often fail to act not because they fear negative consequences (cowardice), but because they believe their actions won't have a positive impact (futility). Recognizing this distinction is critical; overcoming futility requires demonstrating that change is possible, which is different from mitigating risk.

Morality is not a static trait you possess but a state you achieve through action. Engaging in pro-social behavior shapes your identity as a moral person, creating a virtuous cycle where action precedes and builds character, which can then inspire others.

There's a vast distance between knowing something is wrong and acting on it. Like modern people walking past the homeless or eating meat despite ethical concerns, societies for centuries possessed the moral insight that slavery was wrong but did nothing. Successful movements are the rare exception, not the norm.

The successful anti-slavery movement in Britain was founded primarily by entrepreneurs who applied their skills in scaling companies and operations to a moral cause. This historical example shows that business acumen is a powerful, and perhaps essential, tool for large-scale social change.

Social movements build on one another. The campaign against slavery was not an isolated event; it directly inspired and provided the organizational template for the 19th-century women's rights movement. Similarly, the US Civil Rights movement created the model and momentum for the gay rights movement, showing how progress on one issue makes progress on others more likely.