Look at market fluctuations as your friend rather than your enemy; profit from folly rather than participate in it.
Warren BuffettAlthough we deal with probabilities and expectations, the actual results can deviate substantially from such expectations, particularly on a short-term basis.
Warren BuffettThere is no question that an important service is provided to investors by investment companies, investment advisors, trust departments, etc. This service revolves around the attainment of adequate diversification, the preservation of a long-term outlook, the ease of handling investment decisions and mechanics, and most importantly, the avoidance of the patently inferior investment techniques which seem to entice some individuals.
Warren Buffett