"I am astonished, disappointed, pleased with myself. I am distressed, depressed, rapturous. I am all these things at once, and cannot add up the sum. I am incapable of determining ultimate worth or worthlessness; I have no judgment about myself and my life. There is nothing I am quite sure about. I have no definite convictions - not about anything, really. I know only that I was born and exist, and it seems to me that I have been carried along. I exist on the foundation or something I do not know. 

C.G. Jung (1875-1961)