I am looking for a better expression or idiom that can serve as an analogy to 'I love learning' in this sentence:

The literal translation would be: I love learning. I absorb new information as a sponge absorbs water.

And ... I have never heard nor read such analogy in english so while it sounds understandable, I'm afraid it looks like something that screams I'm not a native english speaker because a native speaker would say something completely different and more typical. But I may be wrong.

Is there a better sounding analogy in english or possibly an idiom?