Alex Kozulin noted in the prologue to his book Vygotsky’s Psychology (1990),
Vygotsky’s writings offer little in terms of ready-made answers to scientific puzzles. His skill was primarily that of turning what appeared to be answers to puzzles into new and more profound questions. He could accomplish this only because for him any particular problem was always seen as just one of the many facets in the development of human scientific and humanistic thought taken in the totality.
For Vygotsky, one’s psychology is the product of complex dynamics between the individual and his or her social environment, and new discoveries raise more questions that can only be understood using inclusive methods. For Vygtosky, learning is a social process.