Ключевые слова: attitude, background, behavior, belief, blue, challenge, change, concept, conceptual, confidence, control, faith, goal, hand, idea, imagination, improvement, inspired, intention, isolated, manage, manners, marker, mental, mentality, mind, mindset, motivation, opinion, optimism, optimist, optimistic, outlook, philosophy, plan, positive, positivity, process, psychology, self, state, status, success, text, think, view, vision, white, word, writing,