Here's a quote from Phil Tucker's book:
The Forgotten "Stonewall of the West" Major General John Stevens Bowen
Indeed, the versatile Bowen was a gifted West Pointer, architect, skilled tactician, topographical engineer, chief of staff, artillerist, top lieutenant and "right arm" for more than one army commander, drill master par excellance, military inventor, intellectual, organizer, tactical innovator, and a far-sighted strategic thinker and visionary.
It's available
here if you care to read it.
"Tell General Lee that if he wants a bridge of dead Yankees I can furnish him with one."
-General William Barksdale at Fredericksburg