My idea of a better world:

Say what you mean, do what you say.

I think it's important so I say it again:

Say what you mean, DO what you say.

Yes, I live my life this way, and I'm constantly rewarded for it. The power of it amazes me, it works on all levels - from family to business. This is the way to make true friends, this is the way to achieve goals, this is the way to happiness.