простофиля, простак, простяк, простыня, чудак на букву «м», колпак, простяга
НАИВНЯ́К, -а, м. (прост.) Наивный, непрактичный человек.
"Life is far too important a thing ever to talk seriously about." Oscar Wilde
"Free speech carries with it some freedom to listen." Warren E. Burger
"Honor is not the exclusive property of any political party." Herbert Hoover
"Hitch your wagon to a star." Ralph Waldo Emerson