Don't think of cost. Think of value.
Successful people willingly do what unsuccessful people are unwilling to do.
Never do something permanently foolish just because you are temporarily upset.
Being alone does not mean you are lonely, and being lonely does not mean you are alone.
Habits, good or bad, can always be traced back to your own thinking.
Making a hundred friends is not a miracle. The miracle is to make a single friend who will stand by your side even when hundreds are against you.