The work of Rudolf Steiner, a visionary who was born in the 19th century, is left in lectures and books, most in German.
The rsarchive presents much of his work in English and here's a lecture on the Four Temperaments.
I know that some people are doubtful about him and his background, he was reluctant toward the Free Masons, like Krishnamurti.
I myself have found great wisdom and beauty in his visions and views on classical homeopathy, farming and social design,
based on the absence of hierarchy. Specially when I studied for foodconsultant in an Academy on a farmland with orchards, herbs,
vegetables and bees, I found the visible and tasty result of applying a farming method where everything is connected and providing for mutual existence.
According to Steiners point of view, everybody who works for a company or factory, should have access to the directors room, the planning,
the choices, the money traffic and the state of the job and workplace. I share his view wholeheartedly. He was ashamed for the medical world,
as soon as doctors created hospitals for sick people, that had to pay for their healing and remedies.
Steiner knew a lot of the ancient healing methods, like the temples in Egypt, where sick people gathered to find spiritual assistance, in order to overcome their ailments. "Once we start asking money for health, it becomes business..... which is corruption to me ..... and things will turn
out the wrong way" he said. If this has turned that way is for each of you to decide. I hope you will find value in this lecture.