Knowledge is wealth in its purest form, fully possessed by and inseparable from the individual. As noted in previous sections of this essay, the application of deliberately obtained knowledge to complex situations establishes the sovereignty of the individual. Variety is wealth insofar as it offers an array of options which may be combined in countless ways to confront the problems of living in the world. Variety in knowledge offers adaptability, and adaptability is the key to survival and prosperity at all levels. Ultimately, resilience, rooted in such flexibility, is the real meaning or value of wealth, of any kind.