If animals could speak, the dog would be a blundering outspoken fellow; but the cat would have the rare grace of never saying a word too much. - Mark Twain
One disadvantage of being a hog is that at any moment some blundering fool may try to make a silk purse out of your wife's ear. - J.B. Morton
Show us a man who never makes a mistake and we will show you a man who never makes anything. The capacity for occasional blundering is inseparable from the capacity to bring things to pass. The only men who are past the danger of making mistakes are the men who sleep at Greenwood.
By seeking and blundering we learn. - Johann Wolfgang von Goethe