Simple nuggets

I think there are simple nuggets of wisdom which are more like boulders by their simple truth.

There are a few principles I apply when dealing with women, like "Judge a woman by her actions, not her words".

The saying which I most use to maintain frame is one told to me by a Greek in London - "He who argues with a fool is an even bigger fool". I find this useful because it applies to both genders, and especially women and drunk people. The minute you find yourself trying to reason with a fool, it's like a jackass staring into the mirror.

What simple nuggets do you use to maintain frame?