Učitel se připravuje na univerzitní zkoušky. Profesor drží knihu a ukazuje. Učitel na vysoké škole na univerzitní přednášku - Stock fotografie a obrázky

Teacher preparing for university exams. Professor holding a book and pointing. Teacher in college on university lecture

Cheerful funny academic professor in the library, knowledge, learning and education concept. Think senior teacher

Teacher preparing for university exams. Professor holding a book and pointing. Teacher in college on university lecture

Serious professor. People scientist occupation, knowledge, learning and education concept

Teacher in the classroom near the blackboard is teaching a lesson. Professor at the university is giving a lecture

Cheerful funny academic professor in the library, knowledge, learning and education concept. Think senior teacher

Older male thinking teacher standing in front of a chalkboard in a classroom. Think senior. Teachers job and learning concept

Academic success. Mature elegant professor with glasses. School thinking teacher or college and university lecture

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Young handsome bearded man scientist or professor with long beard and teacher glasses with book or notepaper sitting at table with wooden cubes isolated on white background

Portrait of serious teacher in school classroom. Tutor, professor, mentor man at desk. Studying, learning, training concept

Academic success is much more about hard work than inborn talent. High school concept copy space. World teachers day. Bearded professor at school lesson at desks in classroom

Business school of education concept. Businessman motivation. Coworker working at office workplace. Businessmen using laptop at work.

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Disagreements in business. Man with beard on hopeful face holds mug, bosses, coworkers, colleagues on background. Business negotiations concept. Man hope for success, waiting while partners discuss