'Night hangs upon mine eyes; my bones would rest, that have but laboured to attain this hour'.

Brutus' words in the above lines come

after the conclution of the plan to kill caesar

soon after his wife's insisted to know the object of his unusual brooding

as part of his famous address to his fellow Romans

during a brief meeting between him and Cassius on how to counter the forces of Octavius and Antony