Though the dungeon, the scourge, and the executioner be absent, the guilty mind can apply the goad and scorch with blows.
LucretiusLong time men lay oppress'd with slavish fear Religion's tyranny did domineer ... At length a mighty one of Greece began To assert the natural liberty of man, By senseless terrors and vain fancies let To slavery. Straight the conquered phantoms fled.
Lucretius