The only resistance comes from Jack, an aggressive and impetuous boy who places facts higher than speeches.

resistance 是名词，来自动词 resist（抵抗、反抗），加上后缀 -ance 构成名词形式，表示"抵抗、反抗"的行为或状态。在这里指"反对意见"或"抵制行为"。