"One cannot but pity the man with sallow face and sluggish gait who when
everybody else is feeling the happy impulse
of a common prosperity persists in believing that the country is going to the dogs, and steadily sells stocks while everybody else is buying them. He is simply ruining himself" (Clews, 1908, p. 19)
Reference:
Clews, Henry, and Victor Niederhoffer. Fifty Years in Wall Street. J. Wiley & Sons, 2006.