Banboku Ōno (大野 伴睦, Ōno Banboku; September 20, 1890 – May 29, 1964) was a Japanese politician who was a powerful faction leader within the Liberal Democratic Party (LDP) in the early postwar period, serving stints as Speaker of the House of Representatives, Secretary General of the Liberal Party, and Vice President of the Liberal Democratic Party. Viewed as an archetypical "party politician," as opposed to the "ex-bureaucrat" elected leaders he staunchly opposed, Ōno was affectionately nicknamed "Ban-chan." He was also known for his colorful sayings, such as noting that just as with yakuza gangsters, "politics is all about giri and ninjō", and "A monkey that falls from a tree is still a monkey, but a politician that loses an election is just a person".
Source: “Banboku Ōno”, English Wikipedia (CC BY-SA 4.0), excerpt