Warren Buffett

The basic ideas of investing are to look at stocks as business, use the market's fluctuations to your advantage, and seek a margin of safety. That’s what Ben Graham taught us. A hundred years from now they will still be the cornerstones of investing.

I’ll tell you why I like the cigarette business. It costs a penny to make. Sell it for a dollar. It’s addictive. And there’s fantastic brand loyalty.

http://en.wikipedia.org/wiki/Warren_buffet