Often misattributed to George Washington. Probably originated from a spurious quote in "A Life of Washington, Vol. II" by James Paulding, p. 209: "It is impossible to govern the universe without the aid of a Supreme Being"
“Everybody is a genius. But, if you judge a fish by its ability to climb a tree, it will spend its whole life believing that it is stupid.”
Often misattributed to Albert Einstein.
Often attributed to Benjamin Franklin, but the earliest occurrence of this quotation was found in a book from 20th century.