When two identical 3He atoms collide... the interference is destructive. Particles that behave like 3He atoms are called fermions, short for "particles obeying Fermi–Dirac statistics."... while bosons imitate one another... the "identity force" between fermions acts like a repulsion, and the probability of finding a fermion at some point in space is reduced if some of its identical siblings are nearby.... It is the repulsive identity forces between electrons that support white dwarf stars... against their own gravity.

Longing for the Harmonies: Themes and Variations from Modern Physics (1987)