Questions & Answers about O filósofo estuda o bom e o mau.
Why do we use the article o right before the adjectives bom and mau?
Why is it o bom e o mau instead of o bem e o mal?
They are similar, but have a slight difference. Bem and mal often translate to the absolute moral concepts of "good and evil". Here, using the nominalized adjectives o bom and o mau refers more broadly to "the good things" and "the bad things" or the positive and negative aspects of life.
Could I use the feminine article a to make these abstract concepts, like a boa e a má?
No, to create a general, abstract noun from an adjective, you must always use the masculine singular o. If you used a boa, a Portuguese speaker would assume you are referring back to a specific feminine noun that was just mentioned (like "the good idea" or "the good woman"), rather than the general concept of "what is good".
Do I really need to repeat the o before mau, or could I just say estuda o bom e mau?