Questions & Answers about Lo malo es que la mente nunca olvida.
Where is the word for 'thing' in lo malo?
In Spanish, when you want to talk about an abstract concept, you use the neuter article lo followed by a masculine singular adjective. So, lo malo simply means 'that which is bad' or 'the bad thing.' You don't need to add the word cosa (thing).
Could I say el malo instead of lo malo?
No. If you use el malo, you are talking about a specific bad male person or object ('the bad one' or 'the bad guy'). Because we are talking about a general, abstract idea of badness, we must use the neuter article lo.
Why is it la mente? Shouldn't words ending in '-e' be masculine?
Why is there no no in this sentence since it uses the negative word nunca?