"I am a sentientist because: Suffering matters to those who suffer. Sentientism means having compassion for all those who suffer – both human and nonhuman. Sentientism means emancipating all sentient beings who can’t stand up for their own interests. Sentientism is the new moral paradigm. Change will not come by doing nothing. Sentientism is not only a theoretical idea, it includes veganism. Sentientism doesn’t hurt you – nor others.”

Floris's bio states he is "a philosopher and therefore an atheist". He is a practical, activist, vegan philosopher. He has written a number of books including "Philosophy for a Better World", "On Green Liberty", "De vrolijke veganist" ("The Happy Vegan") and "Hoe komen we van religie af?" ("How to get rid of religion. An inconvenient liberal paradox"). In 2017, Floris participated in a television series "To Hell With Your Religion", in which he lived with a group of people of various religions for two weeks, exploring and critiquing religious ideas.
Floris' Sentientist Conversation with Jamie on YouTube and Podcast
After our conversation, Floris kindly shared a series of posters he has developed that relate to Sentientist themes. These posters, hosted here, remain Floris’ intellectual property but he is happy with them being freely used for educational purposes.
Floris on Wikipedia