I should pause here for my more literal readers and explain that
being selfish doesn’t mean you should let a runaway baby carriage roll
into traffic if you think stopping it will make you ten seconds late for
work. Humans are so emotionally and societally connected with one
another that often the best thing we can do for ourselves is to help
others. I’ll trust you to recognize those situations. Being selfish doesn’t
mean being a sociopath. It just means you take the long view of
things.