Source identified1
“Ask yourself whether you are happy, and you cease to be so.”
The aphoristic warning concerns excessive self-monitoring: repeatedly testing an experience for happiness can interrupt the very absorption that makes enjoyment possible.
Source note: Autobiography, Chapter V; Mill states this within his post-crisis philosophy of pursuing ends beyond happiness itself.
Source identified2
“Aiming thus at something else, they find happiness by the way.”
Mill’s mature view is that happiness is often an indirect result of sustained attention to worthwhile people, work, art, or purposes beyond constant self-measurement.
Source note: Autobiography, Chapter V; this sentence concludes Mill’s reflection that happiness is better approached indirectly than made the sole object of scrutiny.
Source identified3
“A pupil from whom nothing is ever demanded which he cannot do, never does all he can.”
The sentence argues that education needs genuine stretch: always keeping demands inside proven ability can leave capacity underused.
Source note: Autobiography, Chapter I; Mill reflects critically on his father’s demanding teaching while preserving this principle about intellectual effort.
Source identified4
“The maintenance of a due balance among the faculties now seemed to be of primary importance.”
Mill describes a shift away from developing intellect in isolation toward cultivating a more balanced range of human capacities.
Source note: Autobiography, Chapter V; Mill is describing the intellectual and emotional lessons he drew from his mental crisis and recovery.
Source identified5
“Anything which could be found out by thinking I never was told, until I had exhausted my efforts to find it out for myself.”
Mill describes an education built around discovery before explanation, emphasizing active reasoning rather than passive recall.
Source note: Autobiography, Chapter I; Mill describes his father’s method of making him attempt a problem independently before being told the solution.
Source identified6
“He who chooses his plan for himself, employs all his faculties.”
Choosing for oneself exercises observation, reasoning, discrimination, and self-command in ways that passive imitation does not.
Source note: On Liberty, Chapter III, in Mill’s discussion of individuality and self-directed choice.
Source identified7
“He who knows only his own side of the case, knows little of that.”
Understanding a position requires serious contact with competing arguments; familiarity with only one side can produce confidence without real comprehension.
Source note: On Liberty, Chapter 2; Mill argues for open discussion because opposing views expose weaknesses and sharpen understanding.
Source identified8
“He who lets the world, or his own portion of it, choose his plan of life for him, has no need of any other faculty than the ape-like one of imitation.”
A life copied from convention leaves important human faculties unused; choosing deliberately requires observation, judgment and firmness.
Source note: On Liberty, Chapter III; Mill contrasts imitation with actively choosing one’s own plan of life.
Source identified9
“If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind.”
Mill makes the number of people holding an opinion irrelevant to their right to silence dissent: minority speech remains worth protecting even when nearly everyone else believes it wrong.
Source note: On Liberty, Chapter II, Project Gutenberg #34901. Mill’s next argument is epistemic as well as political: suppressing an opinion can deprive everyone of truth or of the clearer understanding created when truth is tested against error.
Source identified10
“Society in equality is its normal state.”
Mill contrasts relations organized around command and obedience with equal association, presenting equality as the normal direction of an improving society.
Source note: The Subjection of Women, discussion of marriage and moral cultivation; the sentence follows Mill’s contrast between older command-and-obedience relations and society among equals.
Source identified11
“The a priori presumption is in favour of freedom and impartiality.”
Mill places the burden of proof on restrictions and unequal privilege rather than treating inherited inequality as self-justifying.
Source note: The Subjection of Women, Chapter I; the line appears in Mill’s argument about where the burden of proof should fall when liberty or equal treatment is restricted.
Source identified12
“What women by nature cannot do, it is quite superfluous to forbid them from doing.”
The argument exposes a contradiction in claims about natural incapacity: if an activity were truly impossible by nature, legal prohibition would be unnecessary.
Source note: The Subjection of Women, Chapter I; Mill argues against using custom and prohibition as evidence of women’s supposed natural limitations.