"Great spirits have always encountered violent opposition from mediocre minds."  --Albert Einstein

"Some men see things as they are and ask why. Others dream things that never were and ask why not?"  --George Bernard Shaw

"Do or do not. There is no “try.” -- Yoda, The Empire Strikes Back

"If the problem can be solved, there is no use worrying about it. If it can’t be solved, worrying will do no good."  --Tibetan proverb