This document discusses the importance of remembering historical injustices and oppression faced by marginalized groups. It lists several important events such as Christopher Columbus discovering the Americas and the resulting massacre of indigenous people. It acknowledges that it is okay to feel anger about such events and to exclude those who cannot understand the experiences of oppression. However, it also emphasizes using non-violence and the importance of ultimately wanting humanity to progress beyond such injustices. The overarching message is that while remembering the past is important, dwelling on injustice is not productive and progress requires collective work.