If you permit yourself to be lured by all the very convincing advertisements suffocating this market then you will simply lose your original stake money very quickly. (financialtrading.com)
We greatly doubt whether the man who stakes money on his view that the market is heading up or down can ever be said to be protected by a margin of safety in any useful sense of the phrase... Thus, in sum, we say that to have a true investment there must be present a true margin of safety. (valuewalk.com)
Even if I think they'll lose I couldn't stake money on it (sbnation.com)