Positive sayings assist training and development, learning, group and team building, and personal growth in others. John Steinbeck writes, ''Suddenly Lennie's eyes centered and grew quiet, and mad. Crooks lives in the barn rather than the bunkhouse because he is black and the ranch is segregated. This lesson will cover the events of Chapter Four of ''Of Mice and Men'', where we meet Crooks and explore the prevalent theme of loneliness in this chapter. The quote, during Abbot's presidency of the 21st Century Learning Initiative, was aimed at children's education, but the principle applies equally to adult learning and development. See Howard Gardner's Multiple Intelligence theory and Erik Erikson's life-stages theory - both featured on the Businessballs website - as they relate to developing personal value, belief and purpose.