French language Q&A Forum

For the question, Je sens quelque chose, et toi ? - Non, je  ..., can I also say 'No, je ne sens pas du tout? ' What are differences between ne...rien and pas du tout? Thanks.

Hi,

Could someone please help me to understand which is the appropriate way to use the verb 's'intéresser à' in the sentence 'The subject I am interested in is French'.

I have seen it used in two ways and am wondering which is correct or the most common.

1. La matière à laquelle je m'intéresse est le français. 

2. La matière qui m'intéresse est le français.

 Thank you :) 

Whilst not directly on this subject but is anyone able to explain the use of "vaut" from the example. Il vaut mieux le faire soi même.