By saying "You can encounter many defeats," the quote acknowledges that failures and disappointments are a natural part of life and personal growth. It encourages individuals not to be discouraged by these inevitable obstacles but to view them as learning experiences and opportunities for self-improvement.
The phrase "but you must not be defeated" further emphasizes the significance of not giving up. It suggests that regardless of how challenging circumstances may be, it's vital to maintain a positive mindset, embrace challenges, and continue striving for success.
Overall, the statement underscores the notion that the true measure of a person's character and determination is not the absence of defeats, but their ability to rise above them, learn from them, and persevere in the pursuit of their goals and aspirations.