Healthy skepticism is an important ingredient to work and life. It keeps us from being manipulated or from making the wrong decision—whether that’s taking a job that seems too good to be true or building a product feature simply because the CEO is passionate about it. It is the first step to truth, which should be our main goal. It’s not about doubting everything, but about being humble enough to question assumptions until we can identify the truth. And then being willing to adjust as we get more information.