i've heard players say that whenever they are 1st to open they will only play the hand if they are willing to raise with it. and then followed on by saying if they are willing to raise with it - they will raise with it.
i think i phil gordon said this piece of advice in his little green book. but i've also heard others say it.

would you say this is good advice? or are there times where you will just limp a hand rather than raising it?