"You should use garlic with pork and ginger with beef and never vice versa."
This is coming from my dad who says that fact has been handed down from generations and generations of Chinese cooking. He says if I mix it (i.e. cook pork with ginger and beef with garlic), there will be an unpleasant taste. Maybe he's just exaggerating, I'm not sure. Do you think there is any truth to this saying?