Source identified
“The universe is wider than our views of it.”
Reality exceeds any one viewpoint, so confidence in a perspective should leave room for what has not yet been seen.
Source note: Walden, Conclusion; Thoreau uses the sentence while arguing that familiar human views do not exhaust reality.
Source identified
“There is nothing either good or bad, but thinking makes it so.”
Voice: Fictional character · Hamlet
The line separates events from the judgments people place on them, a useful distinction for thinking about perception and response.
Source note: Hamlet, Act 2, Scene 2; Hamlet says this to Rosencrantz and Guildenstern while explaining that Denmark feels like a prison to him. The line is dramatic dialogue, not a detached psychological proposition by Shakespeare.
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“If the doors of perception were cleansed every thing would appear to man as it is, Infinite.”
Blake imagines habitual perception as a filter that narrows reality; cleansing it would reveal a less limited world.
Source note: The Marriage of Heaven and Hell, Plate 14; Blake’s prose-poetic argument about the limits and cleansing of perception.
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“The unreasonableness of a thing is no argument against its existence, but rather a condition thereof.”
The aphorism separates the fact that something exists from the expectation that existence must be rational or well ordered.
Source note: Human, All-Too-Human, Part I, aphorism 515, “From Experience”; Helen Zimmern translation.
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“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 identified
“We hear only the questions to which we are capable of finding an answer.”
The aphorism suggests that inquiry is limited by the conceptual capacities of the person asking, making intellectual growth partly a matter of becoming able to formulate and recognize better questions.
Source note: The Joyful Wisdom, aphorism 196; Thomas Common translation.