  The objective of statistical physics is to understand macroscopic behavior of
a many-body system from the interactions of the constituents of that system.
When many-body systems reach critical states, simple universal and scaling
behaviors appear. In this talk, I first introduce the concepts of universality
and scaling in critical physical systems, I then briefly review some examples
of universal and scaling behaviors in human and social systems, e.g. universal
crossover behavior of stock returns, universality and scaling in the
statistical data of literary works, universal trend in the evolution of states
or countries etc. Finally, I mention some interesting problems for further
studies.
