"It is not until you have a burning yes inside of you about what is truly important that you can pleasantly, smilingly, cheerfully, say no to all of that which is urgent, but not truly important. Our deepest guilt comes from doing the opposite, implicitly saying no to the truly important and yes, yes, yes to the urgent that is not important. The more we are free from non necessities, the more we are free to do the more meaningful actions of our lives." - Stephen R. Covey
I love this. People often feel so guilty about saying no. Like they should do this or should do that.
And when you remember this, that which is important to you, you can say no powerfully, feeling peaceful inside, because you know that which matters most to you. That which is important to you.