He was 'in essence' [='basically, essentially, fundamentally'] an honest person.
Time/speed is 'of the essence' when dealing with a medical emergency.
The book's illustrations capture the 'essence' of the story.
(..) as the bishop suggested, then I'll need some extra time to raise more men at arms. I agree. But now time itself is of the essence. They cannot bring such a force, on foot, or by boat, to Wessex within a week! Even so, the element of surprise is the most valuable asset. We... (..)2017 TvShow: Vikings Title: On the Eve Season: 4 Episode 19