The malice, impotent though it be, which possesses these demon souls is an evil of boundless extension, of limitless duration, a frightful state of wickedness which we can scarcely realize unless we bear in mind the enormity of sin and the hatred God bears to it.
Moreover, our earthly fire destroys at the same time as it burns, so that the more intense it is the shorter is its duration; but the fire of hell has this property, that it preserves that which it burns, and, though it rages with incredible intensity, it rages for ever.
There are no more uses of "duration" in the book.
Show samples from other sources
I take zinc tablets to help shorten the duration of a cold.
More frequent and longer duration exercise is associated with better health.