This important book contains selected research papers of Prof Bunji Sakita. Included are his pioneering papers on SU(6) symmetry, strong coupling theory, string theory, supersymmetry and the method of collective coordinates. There is also a vivid personal account of his journey in physics. The book brings to light some of the key concepts of modern high energy physics.

Towards the close of the 20th century, the world's leading experts in theoretical and experimental physics review the major developments in their respective research areas, and present the prospects for the coming 21st century. The subjects covered in this volume are field theory, string theory, quantum cosmology, solid state physics, physics of complex systems, high energy physics, quark-gluon plasma, nuclear physics and observational cosmology.