He that wrongs his friend
Wrongs himself more, and ever bears about
A silent court of justice in his breast,
Himself the judge and jury, and himself
The prisoner at the bar, ever condemned. [ Alfred Tennyson ]

They talk of short-lived pleasures - be it so -
Pain dies as quickly; stern, hard-featured pain
Expires, and lets her weary prisoner go.
The fiercest agonies have shortest reign. [ Bryant ]

The soul, ray of Heaven, invisible prisoner, suffers in its dungeon cruel sorrows. [ A. de Musset ]

The baiting-place of wit, the balm of woe, the poor roan's wealth, the prisoner's release. [ Sir P. Sidney ]

If I were not a king, I would be a university man; and if it were so that I must be a prisoner, if I might have my wish, I would desire to have no other prison than that library (the Bodleian Library at the University of Oxford). [ James I ]

Give not thy tongue too great a liberty, lest it take thee prisoner. A word unspoken is like the sword in the scabbard, thine; if vented, thy sword is in another's hand. If thou desire to be held wise, be so wise as to hold thy tongue. [ Quarles ]