Many classic works of both waka and kanshi were quoted by the nobles.

Not just his political works are quoted, but also letters, plays, and sonnets.

The works of Theopompus were chiefly historical, and are much quoted by later writers.

His works are quoted by numerous experts in various books.

Considered the greatest theologian who had ever lived up to that time; Augustine's works are frequently quoted by Aquinas.

His works are lost but were much quoted by Galen in the second century AD.

His works on pharmacology were frequently quoted by physicians in Muslim Spain during the 10th and 11th centuries.

His works were frequently quoted and reprinted as a witness for the prosecution.

His works have been quoted in more than 1000 books and specialized journals.

His works have been quoted numerous German books and articles, including: