This quote by John Dos Passos emphasizes the power of individual conviction and moral righteousness. It suggests that even the simplest person, when dedicated to a just cause, possesses a strength that can overpower any vast group supporting falsehoods or errors. This highlights the significance of integrity and belief in one's principles as a means of overcoming challenges and fighting for what is right.

The implication is that true strength lies not in numbers or might, but in the courage and determination of those who stand firm in their ethical beliefs. This perspective encourages individuals to recognize their potential impact, regardless of their status, when they align themselves with a just cause, illuminating the transformative power of conviction.