Not block other people's way to make fortune

The new colleague is very nice, polite and talkative, could chat from personal to movies, the atmosphere is always pleasant and not in solitude.

I recall a practice of meditation from a friend, she said, " Two restaurants out there, if to compare which one is better, we shall not have bad words for the less tasty one, not to block other people's way to make fortune."

I'm not a devoted follower of meditation, but I truly believe and respect this saying.
Everyone holds different opinion, what we think is good may not be good for others, and what we think is not good, may not really bad for others.

Easy to say, hard to be done, often I need prectice this.