The word makes me think of one of my favourite quotes:
I am someone who constantly tries to be an enthusiast in life, the pessimist trying to be an optimist as it were. And for the most part it’s succesful even if going at it at full speed may not lead to the best result. But I think there’s also a positive to finding the right thing to be enthusiatic about, I’ve found my dream degree and try and pour my enthusiasm into it, not sixth form I put too much enthusiasm into a subject that did me no good as it didn’t even count towards university. Therefore I think a balance of enthusiasm is sometimes needed… And if you have to force the enthusiasm just for the sake of being enthusiastic it isn’t the right thing to be enthusiastic about?