Octavio Paz

Sometimes I had to spend a whole day mixing a boiling mass with a heavy iron rod nearly as large as myself. I would be broken with fatigue at the day's end. Other days, on the contrary, the work would be a most minute and delicate fractional crystallization, in the effort to concentrate the radium.

Yes, it is a rehearsed show, yes, it was analogy of going to see a play at the theatre, where everything has to be in place and whole things, everything being works, all works together to get the best effect you know it's more like an actor learning a part.