profound thought

References in classic literature ?
When he had a particularly profound thought upon the science of war he always unconsciously addressed himself to the youth.
The dull, sleepy expression was no longer there, nor the affectation of profound thought.
The marquise lighted the candles, inhaled the perfume of the flowers, sat down, and was soon plunged in profound thought.
upon the painted face of his assassin an expression of tranquil and profound thought, as in the solution of a problem in chess
If the conversation turned on science or history, he was wont to become thoughtful, and to confine his share in it to little approving nods, like a man who by dint of profound thought has arrived at scepticism.
But the stage-manager, holding his chin in the hollow of his right hand, which is the attitude of profound thought, said:
It was a time of profound thought and sudden revelations for more than one couple, and several single people.
Burdovsky silently resumed his seat, and bent his head as though in profound thought.
Thence he drove to Scotland Yard, but, instead of entering, he sat in his cab with his brows drawn down, lost in profound thought.
The Prince surveyed his progress for a time, and then went towards the Parting of the Waters and stood with folded arms gazing upstream in profound thought.
They followed the road with a sensation that they were soaring along in a supporting medium, possessed of original and profound thoughts, themselves and surrounding nature forming an organism of which all the parts harmoniously and joyously interpenetrated each other.
Sometimes when the cardinal, always on horseback, like the lowest GENDARME of the army, cast a pensive glance over those works, so slowly keeping pace with his wishes, which the engineers, brought from all the corners of France, were executing under his orders, if he met a Musketeer of the company of Treville, he drew near and looked at him in a peculiar manner, and not recognizing in him one of our four companions, he turned his penetrating look and profound thoughts in another direction.