An integral approach is based on one basic idea: no human mind can be 100% wrong. Or, we might say, nobody is smart enough to be wrong all the time. And that means, when it comes to deciding which approaches, methodologies, epistemologies, or ways or knowing are "correct," the answer can only be, "All of them."
Foreword to "Integral Medicine: A Noetic Reader", edited by Marilyn Schlitz and Tina Hyman, 2003.