Summary
This quote suggests that confidence in oneself often aligns with one's abilities. As people become more skilled and capable in a certain area, their belief in their own capabilities also grows. In other words, the level of assurance and self-confidence tends to correspond with the level of competency or expertise an individual possesses. This implies that as individuals develop their skills and gain knowledge and experience, they naturally become more secure and self-assured in their abilities within that particular field or domain.