This quote by Thomas Fuller is a suggestion to be mindful of our actions and to believe before we act. It suggests that a fool is somebody who acts without thought or factor to consider, while a sensible male is someone who makes the effort to strategy and think before they act. The quote suggests that a fool will wander aimlessly, while a sensible guy will take a trip with purpose and instructions. It is a tip to be conscious of our choices and to believe before we act. It motivates us to make the effort to strategy and analyze our choices, instead of simply acting upon impulse. The quote also recommends that a smart guy will be more effective in life than a fool, as they will be more likely to reach their objectives. Eventually, this quote is a pointer to be mindful of our decisions and to believe prior to we act.
