It is unprecedented in human history that mankind has accumulated such a military power to destroy, at once, all centres of civilization in the world and to affect some vital properties of the planet. The danger of a nuclear holocaust is not the unavoidable consequence of the great development of pure Science. In fact, Science is the study of the Fundamental Laws of Nature. Technology is the study of how the power of mankind can be increased.
Technology can be for peace and for war.
The choice between peace and war is not a scientific choice. The culture of hatred produces instruments of war. Love and hatred have existed forever. In the bronze and iron ages, notoriously pre-scientific, mankind invented and built tools for peace and instruments of war. An enormous number of scientists share their time between pure Science research and military applications.