Failure is so important. We speak about success all the time. It is the ability to resist failure or use failure that often leads to greater success. I've met people who don't want to try for fear of failing.
J. K. RowlingAnd sure enough, in seeking to become superhuman this foolhardy young man renders himself inhuman. The heart that he has locked away slowly shrivels and grows hair, symbolising his own descent to beasthood.
J. K. RowlingGinny Weasley, who sat next to Colin Creevey in Charms, was distraught, but Harry felt that Fred and George were going the wrong way about cheering her up. They were taking turns covering themselves with fur or boils and jumping out at her from behind statues.
J. K. Rowling