That is Winston's greatest quote in my opinion. He was a very wise and intelligent man, excepting the Galipolli Campaign, and quick-witted also.
I remember reading a blurb about Winston and a certain smart-mouthed reporter of sorts at a cocktail party once. The 'reporter' said to Winston (quotes are approximate) ...
"I don't drink, I don't smoke, I sleep all night and I'm 100% fit!"
To which Winston replied ...
"I drink, I smoke, I work mostly at night and I'm 200% fit!"
Brilliant comeback.
Gotta love that man as one of the century's greatest.