The quote suggests that reaching the age of thirty might be seen as a point where a man is at the peak of his abilities or strength. However, this does not automatically mean he has gained significant wisdom or insight. Physical or mental prowess can be high, but inner understanding might still be developing.

In essence, age alone does not determine a person's wisdom. The quote emphasizes that maturity and experience play crucial roles in gaining true insight, which may come after the physical or youthful peak. Wisdom is a separate aspect that requires reflection and life lessons, not just chronological age.