19th century German philosopher

Arthur Schopenhauer

?We will gradually become indifferent to what goes on in the minds of other people, when we acquire an adequate knowledge of the superficial nature their thoughts, of the narrowness of their views and of the number of their errors, whoever attaches a lot of value to the opinions of others, pays them too much honour.?

?Other peoples heads are too wretched a place for true happiness to have its seat, would a musician feel flattered by the loud applause of his audience if it were know to him that it consisted entirely of deaf people?

?Be who you are and say what you feel,
because those who mind don?t matter and
those who matter don?t mind.?
- Dr. Seuss

great spirits have always encountered violent opposition from mediocre minds
- Albert Einstein

"you become what you think about"
Earl Knightingale

"A man becomes what he thinks about all day long"
Ralph Waldo Emmerson

"You are not what you think you are but what you think... you are"
Brian Tracey