“I didn't throw the first punch. I threw the second four.”
Great Book of Denver Sports Lists https://books.google.com/books?id=0DhXDgAAQBAJ&pg=PT104&dq=i+didn%27t+throw+the+first+punch.+i+threw+the+second+four+billy+martin&hl=en&sa=X&ved=0ahUKEwiw38ScqsrfAhVDXCwKHSJnBbsQ6AEILTAA#v=onepage&q=i%20didn't%20throw%20the%20first%20punch.%20i%20threw%20the%20second%20four%20billy%20martin&f=false|The
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Billy Martin 3
American baseball player and coach 1928–1989Related quotes
Wong Shun Leung Comments on the Chain Punches in Wing Chun
Punching
Source: Comments From Wong Shun Leung and Tsui Shan Ting, by Ray Van Raamsdonk http://www.springtimesong.com/wcqanda.htm

As quoted in “Clouter Clemente: Popular Buc; Rifle-Armed Flyhawk Aims At Second Bat Crown”
Baseball-related, <big><big>1960s</big></big>, <big>1964</big>

Morning Constitutions (2007)
“If the second marriage really succeeds, the first one didn't really fail.”
The Complete Neurotic's Notebook (1981), Marriage

The third is the imitation of the correct model, and the fourth is repetition, over and over until it becomes habit where is you don’t think about it.
Interview on Charlie Rose https://archive.org/details/WHUT_20100614_130000_Charlie_Rose (2000)

“I knew I hurt him, because when I threw my first elbow… he said 'UGGH!”
After fight with Sean Sherk at UFC 56, on breaking Sherk's nose.
MMA

“Well, I must say that the first man who threw peas at me was a publican..”
"Reminiscences".
Other works

I'll show the 'Electric-chair' pictures and the Dogs in Birmingham and car wrecks and some suicide pictures.
Source: 1963 - 1967, What Is Pop Art? Interviews with Eight Painters, Part 1 (1963), pp. 116-19

Letter written the night before his duel with Aaron Burr (10 July 1804)