passionate interest• Clarke had a passionate interest in calculating the figure of the Earth, another central problem for an accurate topographical survey.• Many of the manifestations of this passionate interest in ceremonial and precedence were not particularly dangerous.• But I had a passionate interest in model trains.• But true enthusiasts are not inspired by making money - their only concern is a passionate interest in the buildings themselves.• Those who know the Duke recognise his passionate interest in the countryside and the wellbeing of those who live by the land.• The sense of violence and anger, together with passionate interest, spilled out all over the place.• What Amanda was wearing underneath had once been a matter of passionate interest to Don.