Date: 1850

"The relation discovered, must be something remote from all the common tracks and sheep-walks made in the mind."

— Smith, Sydney (1771-1845)

Date: November 24, 1859

"Although I am fully convinced of the truth of the views given in this volume under the form of an abstract, I by no means expect to convince experienced naturalists whose minds are stocked with a multitude of facts all viewed, during a long course of years, from a point of view directly opposite...

— Darwin, Charles (1809-1882)

Date: November 24, 1859

"A few naturalists, endowed with much flexibility of mind, and who have already begun to doubt on the immutability of species, may be influenced by this volume; but I look with confidence to the future, to young and rising naturalists, who will be able to view both sides of the question with impa...

— Darwin, Charles (1809-1882)

Date: 1869

"But, in that case, all that has been done in the modern world to relax the chain on the minds of women, has been a mistake."

— Mill, John Stuart (1806–1873)

Date: August-November, 1871

"[B]ut the mind of Mr. Rossetti is like a glassy mere, broken only by the dive of some water-bird or the hum of winged insects, and brooded over by an atmosphere of insufferable closeness, with a light blue sky above it, sultry depths mirrored within it, and a surface so thickly sown with water-l...

— Buchanan, Robert (1841–1901)

Date: April, 1871

"There are cases where our intellect has gone through the arguments, and we give a clear assent to the conclusions. But our minds seem dry and unsatisfied."

— Bagehot, William (1826-1877)

Date: April, 1871

"In cases like the Caliph Omar's, it governs all other desires, absorbs the whole nature, and rules the whole life."

— Bagehot, William (1826-1877)

Date: April, 1871

"A hot flash seems to burn across the brain."

— Bagehot, William (1826-1877)

Date: April, 1871

"Once acutely felt, I believe it is indelible; at least, it does something to the mind which it is hard for anything else to undo."

— Bagehot, William (1826-1877)

Date: April, 1871

"In the same way, I think, experience proves that no one who has had real passionate conviction of a creed, the sort of emotion that burns hot upon the brain, can ever be indifferent to that creed again."

— Bagehot, William (1826-1877)