DislikedI'm not sure who he is...but I tend to agree with him myself.
Obviously if losing money is destabilizing to your decision making process.... you are likely a very new trader, and one who needs to get over the loss of any amount of money being a hit to ones security...no doubt.
But, once someone has moved beyond the basics of "losing messes with my head"...there comes a more dangerous period, in which "losing doesn't mess with my head much... "
After that, I find a few folks reach the point where "losing does not mess with my head, but I...Ignored
*having no emotions doesnt secure u a win*