The quote "A battle can be won before it's ever fought by choosing the right ground" from Rick Riordan's "The Son of Neptune" suggests that preparation and strategic advantages play a crucial role in determining the outcome of conflicts. It emphasizes the importance of knowing one’s environment and using it to one's benefit, showcasing that the choice of battlefield can significantly influence success.

This idea is relevant not only in warfare but also in various aspects of life, such as personal challenges and competition. By carefully selecting the conditions under which one engages, one can tilt the odds in their favor, demonstrating that wisdom and forethought are as valuable as bravery and strength in achieving victory.