Howard Marks quote

From The Most Important Thing:

There are few fields in which decisions as to strategies and tactics aren't influenced by what we see in the environment. Our pressure on the gas pedal varies depending on whether the road is empty or crowded. The golfer’s choice of club depends on the wind. Our decision regarding outerwear certainly varies with the weather. Shouldn't our investment actions be equally affected by the investing climate? 

Most people strive to adjust their portfolios based on what they think lies ahead. At the same time, however, most people would admit forward visibility just isn't that great. That’s why I make the case for responding to the current realities and their implications, as opposed to expecting the future to be made clear.