Baltes, Paul B. Center for Lifespan Psychology, Max Planck Institute for Human Development, Max Planck Society; Max Planck Institute for Human Development, Max Planck Society;
Baltes, P. B., & Kunzmann, U. (2004). The two faces of wisdom: Wisdom as a general theory of knowledge and judgement about excellence in mind and virtue vs. wisdom as everyday realization in people and products. Human Development, 47(5), 290-299.