The only one I don't agree with is 21 - "Yesterday's home runs don't win today's game". Whilst you can no longer do anything about what happened yesterday, it

The only one I don't agree with is 21 - "Yesterday's home runs don't win today's game". Whilst you can no longer do anything about what happened yesterday, it can still have a huge influence on how today goes, particularly if you spend much of your day influencing other people, and you often need to keep that in mind. E.g. - I'm preparing for a presentation with a director - did my last interaction with him go well? If not, I'm probably going to have to work extra hard at getting my message across. Unfortunately a lot of people don't seem to get this and treat pretty much every interaction as a self-contained thing, not realising what effect existing preconceptions will have on this interaction, and not really thinking about what impact this interaction wil have on future ones.