Summary
This quote suggests that personal interests or desires tend to lose their intensity and become tiresome over time. On the other hand, causes or commitments that benefit the greater public never lose their energy. It implies that when individuals are driven by a sense of purpose that aligns with the well-being of others, their motivation and dedication remain constant and continue to fuel their efforts. Ultimately, the quote highlights the enduring power and endurance of one's altruistic pursuits compared to personal endeavors.