Agood sense of contentment means that you work hard throughout your life, leaving little time for rest and play.

If you work hard, but only work, and do not take your time to rest and to do other things that you enjoy (hobbies, play) then you might suffer a burn-out and be tired. this might affect your health, be a source of stress - so it will not bring contentment.

The statement is false!

White dwarf is very hot, but also very small and that is why it may appear dim.

The answer is an appellate court.