I just copy pasted this from elsewhere, kinda fits with the theme of the op though.
The First Golden Rule of Poker
Maximize the size of the pots that you win; minimize the amount of your money in the
pots that you lose.
The Second Golden Rule of Poker
When deciding whether or not to call, factor the amount of money being asked of you
in relation to the amount of money in the pot.
The Third Golden Rule of Poker
Avoid playing too consistently; take note of the consistencies in your opponents.
The Fourth Golden Rule of Poker
Know the players at the table; adjust your playing style accordingly.
The Fifth Golden Rule of Poker
Be aware of tells
in yourself; be aware of tells in others.
The Sixth Golden Rule of Poker
; bluff with the best-balanced frequency to maximize its usefulness.
The Seventh Golden Rule of Poker
Practice inexpensive advertising to create false impressions of your playing style.