Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98
Tract Quotes - page 2 - Quotesdtb.com
Tract Quotes - page 2
The rolling wheel, that runneth often round,
The hardest steel in tract of time doth tear;
And drizzling drops, that often do redound,
The firmest flint doth in continuance wear:
Yet cannot I, with many a dropping tear,
And long entreaty, soften her hard heart,
That she will once vouchsafe my plaint to hear,
Or look with pity on my painful smart:
But when I plead, she bids me play my part;
And when I weep, she says, "Tears are but water";
And when I sigh, she says, "I know the art";
And when I wail, she turns herself to laughter;
So do I weep and wail, and plead in vain,
Whiles she as steel and flint doth still remain.
Edmund Spenser
I have seen A curious child, who dwelt upon a tract Of inland ground, applying to his ear The convolutions of a smooth-lipped shell To which, in silence hushed, his very soul listened intensely for from within were heard Murmurings whereby the monitor expressed Mysterious union with its native sea. Even such a shell the universe itself Is to the ear of faith and there are times, I doubt not, when to you it doth impart Authentic tidings of invisible things, Of ebb and flow, and ever enduring power, And central peace, subsisting at the heart Of endless Agitation.
William Wordsworth
In his curious tract on Stereometry, published in 1615, Kepler made some advances in the doctrine of infinitesimals. Prompted to the task by a dispute with the seller of some casks of wine, he studied the measurement of solids formed by the revolution of a curve round any line whatever. In solving some of the simplest of these problems, he conceived a circle to be formed of an infinite number of triangles having all their vertices in the centre, and their infinitely small bases in the circumference of the circle, and by thus rendering familiar the idea of quantities infinitely great and infinitely small, he gave an impulse to this branch of mathematics. The failure of Kepler, too, in solving some of the more difficult of the problems which he himself proposed roused the attention of geometers, and seems particularly to have attracted the notice of Cavaleri.
Johannes Kepler