"...you've got to know when to fold 'em..."

[Hops7]

I'd like to hear some more thoughts on when and when not to fold, specifically as it relates to limit and NL/PL Hold 'Em.

I know you consider the bettor/raiser and their characteristics. Do you put the bettor on a bluff, the nuts, a draw, betting to eliminate players, etc.

I know you consider yours and the bettors position relative to the button, the flop, the turn, the river.

I know you consider pot odds.

Having asked, I realize that the question may be to vague.

How 'bout this; I guess my concern is laying down too frequently and being run over vs. making big calls and losing too much bank.

Any thoughts are appreciated.