The document discusses two theorists, Ludwig Wittgenstein and Lev Vygotsky, and their views on language and thought. It provides biographical details about each thinker. Wittgenstein came from a wealthy family in Austria but gave away his inheritance, teaching in remote villages and getting into controversies. Vygotsky was born in present-day Belarus and studied a range of topics in university in Russia before returning home, with little known about his life during German occupation. The document examines how each theorist believed language shapes thought and mental processes.