Vincent Van Gogh...
Although mental illness ravaged his being, we can still find coherence and even a deep understanding of humanity in the word of this great artist.
I love this quote:
"Perhaps it will seem to you that the sunshine is brighter and that everything has a new charm. At least, I believe this is always the result of a deep love, and it is a beautiful thing. And I believe people who think love prevents one from thinking clearly are wrong; for then one thinks very clearly and is more active than before. And love is something eternal--the aspect may change, but not the essence. There is the same difference in a person before and after he is in love as there is in an unlighted lamp and one that is burning. The lamp was there and it was a good lamp, but now it is shedding light too, and that is its real function. And love makes one calmer about many things, and in that way, one is more fit for one's work."