Be proud of your mistakes. Well, proud may not be exactly the right word, but respect them, treasure them, be kind to them, learn from them.
And, more than that, and more important than that, make them.
Make mistakes. Make great mistakes, make wonderful mistakes, make glorious mistakes. Better to make a hundred mistakes than to stare at a blank piece of paper too scared to do anything wrong, too scared to do anything.
– Neil Gaiman, “2004 Harvey Awards Speech” from The View from the Cheap Seats