Maya Angelou Quote: "You'll do better"

Here is a Maya Angelou quote I like to keep in mind when I make a decision that was a mistake - or did not turn out as I had hoped it would. 

"You did the best that you knew how.  Now that you know better, you'll do better."   

Isn't this quote filled with wisdom and grace? 
Isn't this true? We do better when we know better - or at least keep trying to....

(if you want to read the original post using this quote, go here...)