"I give the book to the smartest child."
Translation:Eu îi dau cartea celui mai deștept copil.
I have to correct myself: the dative pronoun is not always oligatory. For example, it is not mandatory if the indirect object is an animal. And a pronoun is usually not used if the indirect object is something inanimate or abstract, e.g. "deciția contravine legii" - "the decision is against the law." But if the indirect object is a person, like in the example we are discussing, the dative pronoun must be used.
However, Mika Sarlin (Romanian Grammar, p. 294), claims that such a use is no longer obligatory "in modern language". I have read nowhere else a similar statement.
So, at this poínt I would be grateful if a native-speaker or other kind of expert would chime in to clear things up.