No matter where practiced, when, or by whom, no other form of fishing offers the challenge, frustration, stimulation, intoxication, tranquility - and base rewards - of fly fishing. Author Tom McNally writes: "Fly fishing is the only fishing that completely captures the souls and brains of intelligent people, and imprisons them for their lifetimes. To be consistently successful, the all-round fly angler must be at least an amateur entomologist, ichthyologist, and meteorologist. After learning the rights and wrongs of tackle selection, and mastering the art of flycasting, the fly fisherman must then know about insects and other natural life forms that fish feed upon; he must have a full understanding of fish and their habits; and he needs to know something about weather and how its extremes can affect the aquatic environment".