"Our scientific power has outrun our spiritual power. We have guided missiles and misguided men." - Martin Luther King Jr.

"He who lives without folly isn't so wise as he thinks." - Francois de La Rochefoucauld

"Truly great madness cannot be achieved without significant intelligence." - Henrik Tikkanen

"I am not one of those who in expressing opinions confine themselves to facts." - Mark Twain

"The whole secret of life is to be interested in one thing profoundly and in a thousand things well." - Horace Walpole