How Languages Build Societies:

• Second-language learners demonstrate enhanced empathy, awareness of diversity, tolerance of difference and a greater sense of social justice.
• Learning second languages encourages learners to embrace scientific, social and
  environmental ideas originating from other parts of the world.
• Second-language learning promotes international dialogue, collaboration and
  engaged global citizenship.

• Second-language learning promotes the development of cultural identities and contributes to a deeper appreciation for the transmission of culture through language.

The above statements come from the Literature on the Impact of Second-Language Learning (2017).

Read a research-based article on how language learning builds societies:

• The Conversation: How learning a new language improves tolerance