Group work will teach you the interpersonal skills to keep you from getting fired from any job

I'd say it is false that group work will teach you the interpersonal skills to keep you from getting fired from any job.
There must be a job where your interpersonal skills aren't that important, so this isn't always the case, it cannot certainly apply to any job. 

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)