follow from this that disarmament is merely an illusory scheme or nothing more than an idealistic fantasy. Today, on the eve of the fortieth anniversary of the the United Nations, as we confront the question of how to build a better and more secure world and how to create a healthier international environment, we cannot but see that the main road to this lies through stopping the buildup of, and reducing, nuclear as well as other weapons. BHS/gmr A/C.l/40/PV.S 12 (Mr. Petrovsky, USSR) It would be absurd to try to build the edifice of a more secure world while placing in its foundation more and more explosive material capable of destroying the building itself many times over. The questions of arms limitation and disarmament, as demonstrated by the existing system of agreements , including those relating to the kinds of weapons that form the backbone of the military power of States, fully lend themselves to solution , if one is guided by the concerns common to all mankind, rather than by narrowly self-serving calculations, if the interests of one another are taken into account , and if the unilateral , bilateral and multilateral efforts of States in this area are joined in a common endeavour . Today, more than ever before, there is a need for understanding the realities of the nuclear and space age and rising above ideological and political differences. It is necessary to act with an awareness of the responsibility for ensuring a safe and secure voyage of our spaceship Earth in its galaxy. Such planetary thinking, which implies new approaches and the abandonment of psychological stereotypes and outdated concepts , including those in the military and political area, is steadily gaining ground. It is evolving and gathering momentum in the United Nations and outside our Organization, in the mass movements 
**Analysis**
The text discusses the importance of disarmament and arms limitation in building a better and more secure world. It emphasizes the need for a collective effort to reduce the buildup of weapons, especially nuclear ones, and to find solutions that take into account the common concerns of all mankind. The text also touches on the idea of planetary thinking, which implies a new approach to global problems and the abandonment of outdated concepts. Given the focus on international relations, security, and cooperation, it is likely that the text belongs to the category of international relations.

**Category**
International relations, Science and technology