Part of the "Teaching Young People to be Critical Series," this booklet defines and analyzes emotions and emotional terms for children in light of theories of philosophers Ludwig Wittgenstein and John Dewey. Intended for individual or small group work, the objectives are threefold: reading improvement, reading enjoyment, and student involvement in making the leap from abstractions to practicalities in dealing with some of life's more common enigmas. Emotions are defined as thoughts which cause feelings. An emotion word such as love refers to a feeling (bodily sensation), a thought, a situation, and an action, and can be classified in this way. Stressing the use of reason, the book explains that it is possible to change an emotion by changing a thought and that a person creates and causes his own emotions. Negative emotions such as anger, guilt, and fear, and positive emotions such as humor and love are then discussed. Three principles are suggested for use in clarifying emotions: reducing all abstract terms and ideas to concrete and particular examples; being conscious of every action, thought, and feeling you have; and learning to be objective and rational. In summary, 1) emotions are thoughts which cause feelings, 2) emotions can be changed by changing the thought, 3) emotions are not just feelings, 4) the more clearly we think, the better we can avoid negative emotions and develop positive ones, and 5) emotions are caused by us, not by others or the situation. (CK)