I've been reading up on oscillators some lately...
_Crystal Oscillator Circuits_ by Matthys, regarding Colpitts oscillators: "Physically, the circuit is very simple, but analytically it is very complex." _Practical RF Circuit Design for Modern Wireless Systems_ by Besser & Gilmore: "The analysis of a Colpitts oscillator is very simple."
You say to-ma-to I say to-mat-o...