Aschenbach ... was overwrought by a morning of hard, nerve-taxing work, work which had not ceased to exact its uttermost in the way of sustained concentration, conscientiousness, and tact; and after the noon meal found himself powerless to check the onward sweep of the productive mechanism within him, that motus animi continuus in which, according to Cicero, eloquence resides.
Aschenbach ... was overwrought by a morning of hard, nerve-taxing work, work which had not ceased to exact its uttermost in the way of sustained concentration, conscientiousness, and tact; and after the noon meal found himself powerless to check the onward sweep of the productive mechanism within him, that motus animi continuus in which, according to Cicero, eloquence resides.
http://www.moviequotedb.com/movies/death-in-venice/quote_64053.html