Warren Buffett learned a lot from his mentor, Benjamin Graham. One of the most important of those lessons was Graham's insistence that "In the short run, the market is a voting machine, but in the long run, it is a weighing machine." The idea is that share prices over the short term reflect investors' fickle view, but share prices over the long term reflect the quality of the underlying businesses. Read More...

Warren Buffett learned a lot from his mentor, Benjamin Graham. One of the most important of those lessons was Graham’s insistence that “In the short run, the market is a voting machine, but in the long run, it is a weighing machine.” The idea is that share prices over the short term reflect investors’ fickle view, but share prices over the long term reflect the quality of the underlying businesses.