In this talk, I take stock of what we already know about language teacher emotions in terms of specific emotions felt as part of one’s practice, challenging moments experienced throughout one’s career, and positive psychology. I discuss how this knowledge can help us to better understand teachers and inform classroom practice. I then reflect on what we still potentially do not know about how language teacher emotions work and what possible new directions we can take within research and teacher education to address this important, yet neglected, side of teaching.