Warren Buffett says

“We are suspicious of those CEOs who regularly claim they do know the future—and we become downright incredulous if they consistently reach their declared targets. Managers that always promise to “make the numbers” will at some point be tempted to make up the numbers.”

—Warren Buffett

More from Warren Buffett

“While investors and managers must place their feet in the future, their memories and nervous systems often remain plugged into the past.”

—Warren Buffett

“Diversification is protection against ignorance. It makes little sense if you know what you are doing.”

—Warren Buffett

“You will continue to suffer if you have an emotional reaction to everything that is said to you. True power is sitting back and observing things with magic. True power is restraint. If words control you that means everyone else can control you. Breathe and allow things to pass.”

—Warren Buffett

“I don't look to jump over 7-foot bars: I look around for 1-foot bars that I can step over.”

—Warren Buffett

“Buy a stock the way you would buy a house. Understand and like it such that you’d be content to own it in the absence of any market.”

—Warren Buffett

“Opportunities come infrequently. When it rains gold, put out the bucket, not the thimble”

—Warren Buffett

“From this irritating reality comes The First Law of Corporate Survival for ambitious CEOs who pile on leverage and run large and unfathomable derivatives books: Modest incompetence simply won’t do; it’s mindboggling screw-ups that are required.”

—Warren Buffett

“Do not save what is left after spending; instead spend what is left after saving.”

—Warren Buffett

“If you aren't thinking about owning a stock for ten years, don't even think about owning it for ten minutes.”

—Warren Buffett

“Forecasts may tell you a great deal about the forecaster; they tell you nothing about the future.”

—Warren Buffett