Plenus annis abiit, plenus honoribus: [Tony] is gone from us, full of years and full of honors (Pliny the Younger). Tony's work on behavioral momentum has been a huge contribution to both EAB and ABA. His work for social justice has been equally important. We will gather here to celebrate Tony as a colleague, mentor, friend, and good mate. If you knew him, or his work, or just wished you had, please come to help us celebrate his life and his enduring memory. Those who care to share memories are encouraged to do so.