When I care about 1 problem, I care about 1 problem. When I care about too many probems, I don’t really care about any of them.
When I execute 1 project, I execute 1 project. When I execute too many projects, I don’t really get anything done.
When I make 1 person happy, I make 1 person happy. When I make everybody happy, nobody is happy, and I turn miserable.
To do it all is to invest tremendous effort to do nothing at all.