Ключевые слова: academic, adult, authority, blurred, chalkboard, class, classroom, confidence, confident, education, educator, experienced, faculty, focused, glasses, guidance, instructor, intelligent, knowledge, leadership, learning, lecture, lecturer, lesson, male, mature, mentor, mentorship, model, portrait, professional, professor, role, school, senior, spectacles, students, study, teacher, teaching, tertiary, university, wisdom,