Time for reflection and compromise. It would be absurd for the Convention to run aground on the question of the institutions because its timetable is too tight. The debate has made progress, some of the rough edges have been smoothed over, and compromises are taking shape thanks to concessions, which previously seemed out of reach. But the mid-June deadline set by the Heads of Government could come as a cut-off point. Too many new solutions require analysis and negotiation, and some older...