@Twirlip,
Twirlip;158944 wrote:Can all philosophy be defined, not as a search for goodness, but as a search for sanity?
'Philosophy' means 'the love of wisdom' or better still 'love-wisdom' or even 'wisdom-compassion'. But that is more a Buddhist definition. (That definition is rather old-fashioned, of course. The definition most of analytics prefer is knowledge of the subject of philosophy, and knowing how to debate it. And that is fair enough. But I prefer yours!)
Consider the following idea. We are all familiar with the Standard Distribution, a.k.a. the Bell Curve. Imagine that 'degrees of sanity' are distributed along it. Starting at the left, you have those unfortunate persons with mental illness - schizophrenia and the like. (This is not derogatory, by the way.) A salient characteristics of mental illness is lack of insight. It becomes so acute in the mentally ill that various aspects of their personality appear to them as voices, forces, or other persons. They have little or no self-knowledge, or insight into their own condition. (I don't know if it has been said by anyone, but I believe that insight is the opposite of insanity.)
Then moving right, you find the middle of the bell curve, which is normality - most of us. We have a degree of insight, and can work and love (which was Freud's definition of sanity.) This too covers a range - barely integrated sociopaths at one end, to highly integrated and sane individuals at the other, but all within the range of normality.
I propose that on the far right of the bell curve, and accordingly few in number, you have individuals who are
above normal, or super-normal. They are superbly integrated individuals who possess great insight, great integration, and so on. They are, in a sense, supremely sane individuals. This I would characterize as wisdom, but it might manifest as some other great talent or genius. (I suppose there are also the notoriously 'temperamental geniuses' who are on the border of creativity and madness - Nietzsche comes to mind - but that is not what I have in mind.)
This is similar to Abraham Maslow's idea of the hierarchy of needs. This starts with basic needs, food and shelter, up through social needs, and so on. At the high end of the hierarchy is what he calls the realm of self-actualization and the peak experience.
Quote: Peak experiences are described by Maslow as especially joyous and exciting moments in life, involving sudden feelings of intense happiness and well-being, wonder and awe, and possibly also involving an awareness of transcendental unity or knowledge of higher truth (as though perceiving the world from an altered, and often vastly profound and awe-inspiring perspective). They usually come on suddenly and are often inspired by deep meditation, intense feelings of love, exposure to great art or music, or the overwhelming beauty of nature.
(from Wikipedia).
So I guess here I am putting the perspective of the 'human potential' movement. But I think it is a good perspective, because it gives you some way to calibrate your state of being, as it were, and something to aspire to. And as it is a curve, or a continuum, one can move along it, rather than try and hit a particular ideal or target.