Philosophy
Liberty of Conscience and the Limits of Toleration
Quick fact
John Locke's 'Letter Concerning Toleration' (1689) argued that civil government has no authority over the care of souls, yet even Locke denied toleration to Catholics and atheists — showing that the limits of toleration were debated from the start.
Why this is interesting
We assume we have the right to believe what we want, but does that right extend to acting on it? Where exactly should society draw the line between personal conviction and public harm?