Be cautious otherwise; you may get compelled to modify your thoughts every day.

positive action.

Thoughts is a creation of mental elements that could easily alter under  some pressure and compulsion. Some learned or wise man may defeat  you on the basis of logic, proof and debate, his methodology and arguments can be so fine and appealing  that you would have no counter arguments , you would concede defeat and might start feeling that you are probably wrong. Then it is quite easy that you change your thoughts.  If unfortunately   you get in contact with a lot of learned people having mutually opposing thoughts and you listen to mutually opposing  arguments, you may get compelled  to modify your thoughts every day.  Under such circumstances it will be difficult to reach any definite conclusion, the instability and confusion of your mind may increase further.