"If you want to live a happy life, tie it to a goal, not to people or things." ~
Albert Einstein (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)

ignoramus
Pronunciation: "ig-n&-'rA-m&s also -'ra-
Function: noun
Inflected Form(s): plural -mus·es also ig·no·ra·mi /-mE/
Etymology: Ignoramus, ignorant lawyer in Ignoramus (1615), play by George Ruggle, from Latin, literally, we are ignorant of
: an utterly ignorant person : DUNCE