"Of my young play-fellow.—Good grace to boot!"
"You may ride us
With a soft kiss a thousand furlongs ere
With spur we heat an acre."
The phraseology here is evidently that of the race-course, where a heat is a race. I read 'we heat us.' The phrase is elliptic, the full phrase being 'We heat us by running over an acre of ground.'
"May it be?—
Affection! thy intention stabs the centre."