Well, there are a lot of famous sayings, but in this harassment I prefer to quote some of my own.
“If poker is a game of chance, why are there professional players?”
“No matter how well you play, you'll lose 80% of the time” (based on an interview with Adrian Mateus)
“Poker always seeks to equalize and what better way than to get my chips and not from a bad player”
“My biggest rival is bad luck, my easiest rival is the one who doesn't know how to play, and mission impossible when both come together”