“History shows that the human mind, fed by constant accessions of knowledge, periodically grows too large for its theoretical coverings, and bursts them asunder to appear in new habiliments”
Source: 1860s, Evidence as to Man's Place in Nature (1863), Ch.2, p. 72
Context: In a well worn metaphor, a parallel is drawn between the life of man and the metamorphosis of the caterpillar into the butterfly; but the comparison may be more just as well as more novel, if for its former term we take the mental progress of the race. History shows that the human mind, fed by constant accessions of knowledge, periodically grows too large for its theoretical coverings, and bursts them asunder to appear in new habiliments, as the feeding and growing grub, at intervals, casts its too narrow skin and assumes another, itself but temporary. Truly the imago state of Man seems to be terribly distant, but every moult is a step gained, and of such there have been many.
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Thomas Henry Huxley 127
English biologist and comparative anatomist 1825–1895Related quotes

Address at Haile Selassie I University http://www.jah-rastafari.com/selassie-words/show-jah-word.asp?word_id=radhakrishan (now Addis Ababa University) honoring Indian President Sarvepalli Radhakrishnan (13 October 1965)

1860s, Life and Letters in New England (1867)
Context: The key to the period appeared to be that the mind had become aware of itself. Men grew reflective and intellectual. There was a new consciousness. The former generations acted under the belief that a shining social prosperity was the beatitude of man, and sacrificed uniformly the citizen to the State. The modern mind believed that the nation existed for the individual, for the guardianship and education of every man. This idea, roughly written in revolutions and national movements, in the mind of the philosopher had far more precision; the individual is the world.
This perception is a sword such as was never drawn before. It divides and detaches bone and marrow, soul and body, yea, almost the man from himself. It is the age of severance, of dissociation, of freedom, of analysis, of detachment. Every man for himself. The public speaker disclaims speaking for any other; he answers only for himself. The social sentiments are weak; the sentiment of patriotism is weak; veneration is low; the natural affections feebler than they were. People grow philosophical about native land and parents and. relations. There is an universal resistance to ties rand ligaments once supposed essential to civil society. The new race is stiff, heady and rebellious; they are fanatics in freedom; they hate tolls, taxes, turnpikes, banks, hierarchies, governors, yea, almost laws. They have a neck of unspeakable tenderness; it winces at a hair. They rebel against theological as against political dogmas; against mediation, or saints, or any nobility in the unseen.
The age tends to solitude. The association of the time is accidental and momentary and hypocritical, the detachment intrinsic and progressive. The association is for power, merely, — for means; the end being the enlargement and independency of the individual.

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995), New Rules for the New Economy: 10 Radical Strategies for a Connected World (1999)

Science and the Common Understanding (1953)

Introductory
A Treatise on Man and the Development of His Faculties (1842)
Context: It is a remarkable fact in the history of science, that the more extended human knowledge has become, the more limited human power, in that respect, has constantly appeared. This globe, of which man imagines the haughty possessor, becomes, in the eyes of astronomer, merely a grain of dust floating in immensity of space: an earthquake, a tempest, an inundation, may destroy in an instant an entire people, or ruin the labours of twenty ages.... But if each step in the career of science thus gradually diminishes his importance, his pride has a compensation in the greater idea of his intellectual power, by which he has been enabled to perceive those laws which seem to be, by their nature, placed for ever beyond his grasp.