According to legend, this man wrote the equation "1+1 = 2" on the board to 
According to legend, this man wrote the equation "1+1 = 2" on the board to show his dumb students how easy it is to combine Boyle's Law and Charles's law. His name is attached to a hypothetical thought experiment that imagines the existence of the sun and humanity to be "simple fluctuations in low-energy states," a paradox called this man's "brain." A neural net named for this person uses a learning algorithm that makes use of simulated annealing and is often viewed as a stochastic version of a Hopfield net, which is called this person's "machine." In one of this man's works he draws upon Heinrich Hertz's view that all atoms are simply mental images and concepts to argue for "theoretical plurality," by supposing that there is no such thing as an "ultimate theory." For 10 points, name this physicist whose namesake constant is the ideal gas constant divided by Avogadro's number. 
According to legend, this man wrote the equation "1+1 = 2" on the board to show his dumb students how easy it is to combine Boyle's Law and Charles's law.
Ludwig Boltzmann