Poker is not a game for weaklings. You have to be tough at poker, or you'll be eaten alive.
Here are some quotes that reflect this point.
"If they're defenseless and can't defend themselves, you're in the right place."
Mike Caro, poker writer.
Many players draw a parallel between poker and life itself. Some consider poker to be the best illustration of the principle of the struggle for survival. Many have even read Sun Tzu's book The Art of War as a guide to poker strategy. Here's how poker compares to life.
"Like it or not, the whole essence of a person is revealed at the poker table, and if other players understand him better than he does, then he has no one to blame but himself. And if he is not able and not ready to look at himself from the outside, then he will be a loser both in cards and in life."
Anthony Holden, " The Big Game: A Year as a Professional Poker Player."