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Updated: June 18, 2025
Old Colonel Delany, whose "optics" were so very "keen" to spy out the danger of his son's forming a mésalliance, was stone blind when such a misfortune threatened Alice, liked the young man very much, and could see nothing out of the way in his attentions to his niece, and finally refused to close his doors against him at his son's instance.
And he must be very ignorant of what hath been discovered about it, or have a very strange cast of understanding, who can seriously doubt, whether or not the rays of light and the eye were made for one another with consummate wisdom, and perfect skill in optics.''3
Geometry, also, is of much assistance in architecture, and in particular it teaches us the use of the rule and compasses, by which especially we acquire readiness in making plans for buildings in their grounds, and rightly apply the square, the level, and the plummet. By means of optics, again, the light in buildings can be drawn from fixed quarters of the sky.
The roots of phenomena are embedded in a region beyond the reach of the senses, and less than the root of the matter will never satisfy the scientific mind. We find, accordingly, in this career of optics the greatest minds constantly yearning to break the bounds of the senses, and to trace phenomena to their subsensible foundation.
In 1752 he resigned his bishopric and settled at Oxford, where he died in 1753. Berkeley's works are very numerous. His Essay towards a New Theory of Vision , which was long regarded in the light of a philosophical romance, in reality contains speculations which have been incorporated in modern scientific optics.
He recognized the place of mathematics as the basis of exact science, and proceeded to the investigation of the facts and laws of optics, mechanics, chemistry, and astronomy. But he did not limit himself to positive science; he was at the same time a student of languages and of language, of grammar and of music.
All fresh and beautiful, and green and bright, Hopeful and cheerful vanished is the pall That overspread and chilled the sacred turf, Vanished or hidden; and the whole domain, To some, too lightly minded, might appear A meadow carpet for the dancing hours. The same principle of mental optics is of universal application.
Sitting alone on the top of the ancient castle of Montlhéry, I was conducting an experiment in optics by means of electrical communications with two assistants at Paris and Juvisy. I was trying to find out if the rays of different colours in the spectrum travel at the same rate. It was just on midnight before I brought the experiment to a successful conclusion.
These embryo statesmen have work blocked out for them in the future, and this is a good place for them to adjust to it the focus of their bright young optics. The monarchical idea is certainly predominant in our present surroundings.
"Nonsense! why didn't you use them?" "Because I have not the faculty of looking two ways at once, like Brahma; and my optics were irresistibly drawn in an opposite direction." "A truce to all such excuses!" "Patience, Miss Florence, hear me only once more. The reason is, that I was looking at your cousin over there, and calculating the chances of her surviving suffocation."
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