You wretches, detestable on land and sea; you who seek equality with lords are unworthy to live. Give this message to your colleagues: rustics you were and rustics you are still: you will remain in bondage, not as before but incomparably harsher. For as long as we live we will strive to suppress you, and your misery will be an example in the eyes of posterity. How ever, we will spare your lives if you remain faithful and loyal. Choose now which course you want to follow .

Richard II of England (1367-1400) King of England (1377-1399) [Richard of Bordeaux]

Speech (1381-06-22) to the peasant followers of Wat Tyler at Walthamstow, St Alban’s Chronicle
    (Source)

More on the Peasant Rebellion here.