Who said "Pity is treason when shown to traitors of the state."?

This quote is attributed to Robespierre.

Pity is treason when shown to traitors of the state. - Robespierre

"Pity is treason when shown to traitors of the state."

Robespierre Justice

Revolutionary, Politician French 1758–1794

"The secret of freedom lies in education."

"Nature has made it a pleasure to us to do good."

"Audacity, audacity, always audacity."

"The tree of liberty only grows when watered by the blood of patriots."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."