Carnegie on the Stock Market

Writing in his autobiography, steel industrialist Andrew Carnegie (1835-1919) argued: “no sound judgment can remain with the man whose mind is disturbed by the mercurial changes of the Stock Exchange. It places him under an influence akin to intoxication. What is not, he sees, and what he sees, is not. He cannot judge of relative values or get the true perspective of things. The molehill seems to him a mountain and the mountain a molehill, and he jumps at conclusions which he should arrive at by reason. His mind is upon the stock quotations and not upon the points that require calm thought. Speculation is a parasite feeding upon values, creating none.”