Buckminster Fuller is so far the man ,as I can see it right now, a true visionary, who made us think out of the box and question what is normal or conventional, and this was back in the 50's:
"Throughout his life, Fuller was concerned with the question "Does humanity have a chance to survive lastingly and successfully on planet Earth, and if so, how?" Considering himself an average individual without special monetary means or academic degree, he chose to devote his life to this question, trying to find out what an individual like him could do to improve humanity's condition that large organizations, governments, or private enterprises inherently could not do."
He almost killed himself at 32, but decided not to:
"In 1927 at the age of 32, bankrupt and jobless, living in inferior housing in Chicago, Illinois, he saw his beloved young daughter Alexandra die of the complications of polio and spinal meningitis. He felt responsible, and this drove him to drink and to the verge of suicide. At the last moment he decided instead to embark on "an experiment, to find what a single individual can contribute to changing the world and benefiting all humanity."