'Jockey of Norfolk, be not too bold,
For Dickon thy master is bought and sold.'
A thing devised by the enemy.
Go, gentleman, every man unto his charge
Let not our babbling dreams affright our souls:
Conscience is but a word that cowards use,
Devised at first to keep the strong in awe:
Our strong arms be our conscience, swords our law.
March on, join bravely, let us to't pell-mell
If not to heaven, then hand in hand to hell.

Full play at: http://shakespeare.mit.edu/richardiii/full.html