I think everybody heard this claim, and its opposite, a million times. Students or teachers commonly speak about having talents for a particular subject or another.
The subject is debated, for example, here:
Does one have to be a genius to do mathematics?
The answer is an emphatic NO. In order to make good and useful contributions to mathematics, one does need to work hard, learn one’s field well, learn other fields and tools, ask questions, talk to other mathematicians, and think about the “big picture”.
While people may have different acquired "tastes" in knowledge and put different amounts of enthusiasm and effort when studying different subjects, and thus get better or worse knowledge and grades, is it scientifically proven that people are "born" with specific mathematical or language (or any other subject-specific) talents?
Note, please do exclude extreme examples from any answers, e.g. idiot-savants, etc. The claim is commonly made about the general population.