He never is alone that is accompanied with noble thoughts.

The line suggests that solitude is not the same as loneliness: a person whose mind is engaged by “noble thoughts” (high-minded reflection, moral purpose, intellectual or spiritual aspiration) possesses an inner companionship that can sustain them when physically alone. It elevates thought itself into a kind of company—implying that character and imagination can furnish society, consolation, and direction. The sentiment also carries an ethical charge: “noble” thinking is not mere distraction but a formative presence, shaping one’s conduct and resilience. In this view, the quality of one’s inner life determines whether isolation becomes deprivation or a space for dignity and self-sufficiency.