Ключевые слова: achievement, adversity, background, backgrounds, black, blackboard, board, business, chalk, chalkboard, challenge, chance, change, communication, concept, consulting, courage, creativity, delete, design, difficult, education, eraser, goal, hand, handwriting, idea, impossible, incentive, manager, marketing, message, motivated, motivation, nothing, opportunity, optimist, optimistic, plan, positive, positivity, possibility, possible, sign, success, symbol, text, texture, white, word,