Boltzmann:

Or the beginning of the end. Anyway, without statistics you’re hardly likely to discover how energy is distributed throughout the individual radiation waves. It should in fact function in a similar way to the distribution of kinetic energy throughout the individual molecules of a gas. Unfortunately, my theory is not directly applicable to this particular case.

Planck:

You reckon? Well, I’m in favor of any method, so long as it gets me to the goal.