Leonard Susskind is the Felix Bloch professor of theoretical physics at Stanford University in the field of string theory and quantum field theory. Susskind is widely regarded as the father of string theory for his early contributions to the String Theory model of particle physics.

Susskind was born in New York City and now resides in Palo Alto, California.

Sourced

• (Jokingly) Sex in ten dimensions is impossible... topologically.
  • Source: Lecture "Cosmic landscape and illusion of intelligent design", DESY Hamburg 28.09.2006