Academy and Earth. Azimov A.

Scientist Gary Seldon, the founder of the new science - psychostory, in his works proved the inevitability of the collapse of the Galactic Empire, uniting millions of inhabited worlds. In order to prevent civilization in the abyss of impending chaos, Seldon developed a detailed plan for the restoration of the empire. For its implementation, he founded two academies in different parts of the Galaxy, uniting the best minds of mankind. It seemed that nothing could interfere with the implementation of the Great Plan of Seldon, but human ambitions led to the conflict between the academies, and humanity was again on the edge of the abyss...

the final book of the Academy of the Great Aizimov.