"Youth is a blunder Manhood a struggle, Old Age a regret."
"We smile at the ignorance of the savage who cuts down the tree in order to reach its fruit but the same blunder is made by every person who is over eager and impatient in the pursuit of pleasure."
"I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science."
"In true education, anything that comes to our hand is as good as a book: the prank of a page- boy, the blunder of a servant, a bit of table talk - they are all part of the curriculum."