Abstract:

Niels Bohr ( 1885-1962) was a famous physicist in the 20 century. He published his three papers

which later became famous as“the trilogy”in his early years. Four stories of Niels Bohr were introduced in this paper，

which were his description of“Frank-Hertz”experiment，foundation of the Institute of Theoretical Physics of

the University of Copenhagen，good-natured arguments with Einstein，and involvement with the establishment of

　　the European Organization for Nuclear Research，known as CERN. These stories demonstrated his preeminent intelligence，

　　respectable personality，profound patriotism and the spirit of his dedication to the human peace.

Key words: Niels Bohr, Copenhagen, quantum mechanics