Socrates, arguably the world’s most known philosopher, was executed by poisoning - he drank a mixture containing poison hemlock. At that time death penalty alongside with ostracism, a procedure in which any citizen of ancient Athens could be expelled from the state, were among the most popular methods of punishment. If the majority voted in favour of the sentence, a person had no other choice but to leave or die. Quite often, people who ended up in exile or sentenced to death were later acknowledged as the national pride. There is a chance something similar is happening with hydrocarbons today.