Ключевые слова: academic, academy, blackboard, board, bow tie, boy, caucasian, chalk, chemistry, child, childhood, classroom, concept, cute, education, eyeglasses, formula, glasses, graduate, happiness, horizontal, intelligence, intelligent, kid, learning, lesson, male, mathematic, mathematics, person, portrait, profession, professional, professor, research, school, schoolboy, schoolkid, science, scientist, smiling, student, study, teacher, teaching, university, wisdom, young,