Crossword puzzle clue "there's nothing more to say"

"There's nothing more to say"

"Nothing is easier than to denounce the ___; nothing is more difficult than to understand him": Dostoyevsky

Say "There, there" to, say

Say "There, there," say

Do nothing...or do something and say you're doing nothing

Kids' character who says "People say nothing is impossible, but I do nothing every day"

"There is nothing more deceptive than an obvious fact" author

Who said "There is nothing more deceptive than an obvious fact"