Both for my wife and myself, the personal friendships that have grown out of scientific contacts with colleagues from many different countries have been an important part of our lives, and the travels we have made together in connection with the world-wide scientific co-operation have given us rich treasures of experiences.
But Iran has gone far beyond what is necessary for a purely civilian programme. It has concealed several nuclear facilities from the International Atomic Energy Agency, played hide-and-seek with the international community, and rejected all offers of co-operation from the U.S., the EU, and others.
We will pursue a relationship of friendship and co-operation with the United States, always rooted in mutual respect and in the defence of our fellow Mexicans who live and work honourably in that country.
If co-operation, is thus the lifeblood of science and technology, it is similarly vital to society as a whole.
There is no doubt that this government and this country are benefiting from the reforms that we brought in the 1980s, and that couldn't have been done without the co-operation of the trade union movement.
Europe has found itself confronted with fresh challenges - challenges of a global character, the nature of which is directly connected with changes in the international climate and the difficulties of seeking new models for co-operation.
That co-operation and peace rather than industrial strife and strikes will best promote the prosperity of the employees the company and all of the people and even strengthen the nation.
The general fact is that the most effective way of utilizing human energy is through an organized rivalry, which by specialization and social control is, at the same time, organized co-operation.
Some governments choose to cooperate with the United States in intelligence, law enforcement, or military matters. The co-operation is a two-way street. We share intelligence that has helped protect European countries from attack, helping save European lives.
There are tradeoffs between independence and co-operation, between regulatory autonomy and market access. This means that compromises are necessary to deliver a pragmatic Brexit that protects jobs and living standards while respecting the referendum result.
