subtile

Recent scientific discoveries have conferred upon man new powers of investigation, whereby nature has been made to reveal secrets so subtile that they never had been dreamt of before in philosophy.

From Scientific American ● Jan. 13, 2013

At Paris the Universe is seen, compos’d of Vortices of subtile Matter; but nothing like it is seen in London.

From "The Invention of Science" by David Wootton

The Moment, continued I, that any Particles of Air or Fire more subtile and agitated than others rise, an equivalent Portion of others must necessarily descend at the same time to supply their Place.

From The Travels and Adventures of James Massey by Patot, Simon Tyssot de

We find doctors in the first ages speaking to us of God and the soul as material substances, more subtile indeed than ordinary bodies.

From Ecce Homo! A Critical Inquiry into the History of Jesus of Nazareth: Being a Rational Analysis of the Gospels by Holbach, Paul Henry Thiry Baron d'

Nor wanting was the choral song, Swelling in silvery chimes of sweetness; To sound of which this subtile throng Advanced in playful grace and fleetness.

From Fairy Legends and Traditions of The South of Ireland by Crocker, T. Crofton

What if, through communication with subtiler organisms than my own, I could reach at a single bound the goal, which perhaps a life of agonizing mental toil would never enable me to attain?

From The Atlantic Monthly, Volume 01, No. 03, January, 1858 by Various

Something keener than philosophy, subtiler than Epicurus, pricked Fred, as Minnie vanished into the cloud of snowflakes.

From The Atlantic Monthly, Volume 03, No. 18, April, 1859 by Various

The Reflexion must have rather been caused by a subtiler Medium, which could recede through the Glasses at the creeping in of the Water.

From Opticks or, a Treatise of the Reflections, Refractions, Inflections, and Colours of Light by Newton, Isaac, Sir

We rather think that far subtiler things than the doctrine of association had from of old been familiar to him.

From Life of Robert Burns by Carlyle, Thomas

No, his temperament needed a subtiler atmosphere than this, rarer essence than mere brutal freedom.

From The Atlantic Monthly, Volume 08, No. 50, December, 1861 by Various

He saw it was lovable, and he made it the theme of his noblest poems, his subtilest philosophies, and his highest Art.

From The Atlantic Monthly, Volume 07, No. 44, June, 1861 Creator by Various

Of the most noysom poyson that euer was mingled with the subtilest druggs that euer were.

From The Palace of Pleasure Volume 3 by Painter, William

In such spaces he may dream his dreams, tell his stories, and stamp on them for centuries his subtilest and divinest thoughts.

From Scientific American Supplement, No. 799, April 25, 1891 by Various

A book might be written on the Stratagems of Literature, as Frontinus has composed one on War, and among its subtilest heroes we might place this great poet.

From Calamities and Quarrels of Authors by Disraeli, Isaac

He was the farthest reach of subtlety compatible with an individual self,--the subtilest of authors, and only just within the possibility of authorship.

From Beacon Lights of History, Volume 13 Great Writers; Dr Lord's Uncompleted Plan, Supplemented with Essays by Emerson, Macaulay, Hedge, and Mercer Adam by Lord, John