Let me introduce you to Dr. Sarah Elaine Eaton She is a researcher at Calgary University, Canada, PhD in Educational Leadership.
She has written an ebook: Want to Change the World? Learn Another Language: Leadership Inspired by Language Learning
In her book she mentions the immense benefits of learning another language but bringing in more perspectives. She points out that some people became leaders or could change the world, because they learned another language.
I quote some of her lines: “Learning a language is about growing as an individual, broadening our horizons and deepening our understanding of the world around us”. “When we learn other languages, we challenge ourselves to dig deep into ourselves in order, ultimately, to reach out, to connect”
I recommend reading her ebook, which is available for free by visiting: