John Donahue at Harvard's Kennedy School points out that the norms of culture in Western civil services suit those who want to stay put but is bad for high achievers.
A mere life of ease is not in the end a very satisfactory life, and, above all, it is a life which ultimately unfits those who follow it for serious work in the world.
Anxiety is something you've all experienced at some time in your life, so you'll know that it's an emotional condition in which feelings of dread fear and mental agitation predominate.