Life-long learning is the key to a satisfying career (and probably to a satisfying life, but that might extend beyond the realm of my expertise!) Technology, business practices and even cultural norms are constantly changing and adapting. In order to stay current — or, better yet, ahead of the curve — you need to be able to understand and respond to those changes. Even if you have a PhD, your knowledge of current practices quickly becomes outdated unless you engage in career development and enrichment. Some careers even require you to undergo a certain number of hours of continu...