This quote underscores the element of surprise and the power of underestimated potential. It suggests that the most probable path to success is to undertake what others, especially adversaries, believe you are incapable of. This is because their belief in your inability will make them unprepared for your actions, giving you an advantage. In essence, it’s a strategic play on expectations and perceptions.

In today’s world, this idea can be applied in various fields, from business to politics to personal development. In business, for instance, a company could launch a product or service that its competitors never thought it would, catching them off-guard and securing a market advantage.

In the political arena, a candidate could adopt a strategy or stance that opponents didn’t expect, thereby gaining an edge. This could be seen in the use of social media in political campaigns, which was initially underestimated by many traditional politicians.

From a personal development perspective, this could mean pushing oneself to achieve goals that others may deem unattainable for you. The doubt of others can serve as a motivating force, pushing you to prove them wrong. This could be in terms of pursuing a challenging career, mastering a difficult skill, or overcoming personal obstacles.

However, it’s crucial to remember that while this strategy can be effective, it also requires careful planning, preparation, and execution. It’s not about blindly attempting the impossible, but rather about strategically challenging perceptions and expectations.