Saving the best till last, perhaps. I rise to speak in favour of amendment 400, to which I am proud to have put my name. I applaud the constructive efforts and sincere energies invested in the amendment by right hon. and hon. Members across the Brexit divide, uniting our party and working in collaboration with the Government to improve the Bill and to reflect the genuine concerns voiced during that process. I pay tribute to the Front Bench team and the civil servants, as well as all those who have contributed to enriching the passage of the Bill during the extensive opportunities we have had for scrutiny, debate and discussion. Amendment 400 represents a very sensible and pragmatic way forward in resolving some of the concerns raised. It provides legal certainty because, by placing the exit date in the Bill, we will have confirmed the time and date when the UK will be leaving the EU in accordance with article 50. It will ensure that the operative provisions of clauses 1 to 6 apply from that date, and it avoids a potential failure in the construction of clause 3 in that, if exit day was later than 29 March 2019, the conversion of direct EU legislation might fail. That is because clause 3(1) applies to such legislation only in“so far as operative immediately before exit dayâ€, but that legislation will cease to be operative when we leave the EU in accordance with article 50. It also limits ministerial discretion, which, after all, is to some extent what Brexit is about. Brexit is about restoring power to Parliament and about giving elected representatives a say. Finally, the amendment complements those two objectives by providing a degree of flexibility on the exit day. The Prime Minister confirmed earlier today that the date might be changed only in exceptional circumstances and for a short amount of extra time. I want to comment on the Bill more generally. I think that 2017 has been an extraordinarily successful year for Brexit. The Government have triggered article 50, supported by a convincing and large majority of this House. The Prime Minister has moved us on to phase 2 of the negotiations, and we are now at the point of discussing the exciting and new opportunities for future trade. The Bill has also been very successful in its passage. I want to emphasise the fact that we are making progress. Everybody here in this House has been entrusted with the instruction from the British people to deliver Brexit. We want a smooth and a meaningful Brexit. That is an honour and it is also a duty. The British people are watching, and the world is watching. They might not be interested in the technicalities of constitutional law, or know exactly what the common commercial policy means, but they want us to get on with the job, and to do otherwise would be a gross betrayal of that duty. We have to talk up the opportunities. We are the sixth-largest economy in the world. We have the world's language. We are leaders of the Commonwealth. We have a legal system emulated around the world, a parliamentary system envied by other countries, and financial services that are unrivalled. Britain will succeed after Brexit, and we have to find ways in which we can deliver Brexit, not reasons why we cannot.