Summary
This quote suggests that while complying with obligations and responsibilities may be difficult and require effort, it can also lead to positive outcomes or rewards. The phrase "hard nut to crack" depicts the challenging nature of fulfilling certain obligations, but the "sweet kernel" symbolizes the satisfying and beneficial results that can be gained from overcoming those difficulties. In essence, this quote highlights the rewarding nature of perseverance and the ultimate benefits that come from fulfilling one's obligations.