Student or Learner
1) the spirit of independence and freedom in thinking
2) the independence in spirit and the liberty in mind
3) independent spirit and free idea
4) independence of thought, freedom of the spirit
5) the free thinking and independent spirit
6) spirit of the freedom of the thought , the independence of personality
7) the independent thinking and free spirit
Where have you found that list of alternatives?
We need to see them in complete sentences in order to judge whether they sound natural or not.