Meaning of “Trust thyself: every heart vibrates to that iron…”

Essays, First Series, essay II, “Self-Reliance,” Project Gutenberg #2944. “Whoso would be a man must be a nonconformist” follows Emerson’s claim that society conspires against the manhood of its members through conformity. The represented Gutenberg witness prints a comma after “man,” while the frozen catalog quotation omits that punctuation; the wording is otherwise the same. It remains Transcendentalist moral rhetoric about self-trust and independence rather than a universal instruction to reject social norms or expertise.

Narrative, Chapter X; the line follows Douglass’s physical resistance to Edward Covey and precedes his resolve never again to be a slave in fact.

Essays, First Series, essay VIII, ‘Heroism,’ Project Gutenberg #2944. ‘Self-trust is the essence of heroism’ occurs as Emerson defines the heroic soul's defiance of falsehood and wrong. It remains Transcendentalist moral and conduct-of-life rhetoric rather than a clinical personality measure or empirical prediction of courageous behavior.

Walden; Thoreau contrasts one’s own deliberate track with paths chosen by others.

Political Ideals, discussion of what social institutions should make possible for individuals. Russell immediately connects self-respect with courage, hope and living by the best within oneself despite obstacles.

Of Peace of Mind, section II, Aubrey Stewart translation in Minor Dialogues Together with the Dialogue on Clemency (1889), cross-checked against Project Gutenberg #64576 and the complete Wikisource transcription. Seneca tells Serenus to have confidence in himself and believe he is proceeding on the right path while defining the steady condition he calls peace of mind.