The emotion they gave me was exquisite, but I could not preserve it, nor could I indefinitely repeat it; the most beautiful things in the world finished by boring me.
Comparing American English and British English is like counting incompatible sets of floors of a building. That's why, when you try translating over and over again between the two, it's like climbing an endless set of floors. You might even reach the moon
Although I broke test tubes and played about with chemicals for fun, I did occasionally manage to obey the teacher's instructions as well; repeating experiments that others had long ago undertaken.