“For if we may compare infinities, it would seem to require a greater infinity of power to cause the causes of effects, than to cause the effects themselves. This idea is analogous to the improving excellence observable in every part of the creation; such as in the progressive increase of the solid or habitable parts of the earth from water; and in the progressive increase of the wisdom and happiness of its inhabitants; and is consonant to the idea of our present situation being a state of probation, which by our exertion we may improve, and are consequently responsible for our actions.”
Zoönomia, vol. 1 (1794).
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Erasmus Darwin 7
English physician, botanist; member of the Lunar Society 1731–1802Related quotes

“Great changes are not caused by ideas alone; but they are not effected without ideas.”
Source: Liberalism (1911), Chapter III, The Movement Of Theory, p. 30.

Source: (1776), Book I, Chapter VIII, p. 97.

The Principles of Success in Literature (1865)
Context: Literature is at once the cause and the effect of social progress. It deepens our natural sensibilities, and strengthens by exercise our intellectual capacities. It stores up the accumulated experience of the race, connecting Past and Present into a conscious unity; and with this store it feeds successive generations, to be fed in turn by them. As its importance emerges into more general recognition, it necessarily draws after it a larger crowd of servitors, filling noble minds with a noble ambition.

Source: The Limits of State Action (1792), Ch. 16