Related:

• Do all the good you can, By all the means you can, In all the ways you can, In all the places you can, At all the times you can, To all the people you can, As long as ever you can.
  -- John Wesley...
• You maybe only young once - but you can be childish all your life.
• Don't do things half-assed. If a thing is worth doing at all, it's worth doing as well as you can possibly do it.
  Pick out something you think is worthwhile and do it or work at it with passion....
• You will soon be able to do all the things sane people can do.
• As long as you can still be disappointed you are still young.
• You are only young once, but you can stay immature indefinitely.