Like it or not - and often we don't - power is a pervasive phenomenon. From midnight decisions in the Oval Office that risk the lives of young Americans to quarrels over the kitchen table, power is part of every human equation. Yes, it can be - and often is - abused, in business as in all arenas of endeavor. But it can also be used to do great good for great numbers. And as a career-building tool, the slow and steady (and subtle) amassing of power is the surest road to success.