Abstract
In 2008, the Nobel Prize in Physics were awarded for Dr. Yoichiro Nambu, Dr. Makoto Kobayashi, and Dr. Toshihide Maskawa. Dr. Kobayashi and Dr. Maskawa are graduates of Nagoya University. In this report, we will review on the particle physics, which they studied. It will be claried what we know about the particle physics and what we do not know. Recently we obtain several clues about the particle physics from the observations of the universe. It will be mentioned why and how the cosmology is related with the particle physics.
