The key to successful investing is to have a strong understanding of the fundamentals, a disciplined approach, a clear understanding of the market, a long-term perspective, a clear understanding of the risks and rewards, and a strong understanding of the market psychology.
I will tell you what I will do and what I will not do. I will not serve that in which I no longer believe, whether it call itself my home, my fatherland, or my church: and I will try to express myself in some mode of life or art as freely as I can and as wholly as I can, using for my defence the only arms I allow myself to use—silence, exile, and cunning.