Ключевые слова: achievement, businessman, career, challenge, climbing, collaboration, compete, competition, cooperation, determination, development, difficulty, effective, efficiency, effort, employee, goal, growth, idea, improvement, increase, investment, leader, motivation, objective, opportunity, performance, persistence, power, productive, productivity, progress, purpose, pushing, quality, revenue, skill, solution, strategy, strength, strong, struggle, success, successful, target, teamwork, together, training, worker,