Θησαυροί της επιστημονικής ιδέας. Άνδρας με γενειάδα σε κλασικό κοστούμι, επιστήμονας ή καθηγητής φυσάει τη σκόνη του βιβλίου αντίκες στη βιβλιοθήκη κοντά στο σωρό των βιβλίων, ράφια στο παρασκήνιο, defocused. - Φωτογραφίες & Εικόνες Αρχείου

Man with beard in classic suit, scientist or professor blows off dust of antique book in library near pile of books, bookshelves on background, defocused. Treasures of science concept.

Man on busy thoughtful face reading book, bookshelves on background. Teacher or student with beard studying in library. Scientist busy with exploring book. Education and science concept.

Man with beard in classic suit, scientist or professor sniffs smell of antique book in library near pile of books, bookshelves on background, defocused. Treasures of science concept.

Interesting book concept. Man with book in vintage cafe.

Relax, pleasure, leisure, hobby concept. Mature man with calm face has cup of tea. Businessman sits in vintage interior and enjoys relaxing reading. Bearded man in luxury suit in public library.

Portrait of smiling male college studying at table in library.

Over worked man sleeping on an open book with many more on the table.

Hobby and leisure concept. Mature man has hobby. He likes reading.

Man on busy thoughtful face reading book, bookshelves on background. Education and science concept. Teacher or student with beard studying in library between piles of books.

Man on surprised face holds hourglass while studying, bookshelves on background. Time flow concept. Teacher or student with beard studying in library. Man, scientist in glasses looks at hourglass.

Education and science concept. Teacher or student with beard studying in library between piles of books. Man on busy thoughtful face reading book, bookshelves on background.

Intelligent elite and scientific people concept. Professors read book in antique interior. Intelligent men, scientists meet in library. Men in suit with vintage bookshelves on background.

I have to study. Gentleman in top hat read study book. Bearded man isolated on white. Back to study. Return to education. Private teaching. Private lesson. Study of poetry. School for life.

Vintage style and fashion. Bearded man in expensive suit in his cabinet. Professor stands in big library and holds book. Mature man with serious face. Study, teach, history, literature concept.