Jon Hanson delivered a “last lecture” calling upon graduating Harvard Law students to recommit to their “childhood dreams of justice.”

“[Y]ou exist at an unbelievable moment in history,” he told students.

“They happen every 50 years: a moment when the granite of the system — petrified hierarchy and injustice — is actually in flux, and it is changing rapidly. You live in one of those moments, so much more than so many graduates of HLS, you have the opportunity to use your justice dream to make a difference with it. Because now really matters. Integration is not enough. Diversity is not enough. The house is on fire, now.”

You can read an a summary of his remarks here and you can watch the video of his lecture below.