A textual critic engaged upon his business is not at all like Newton investigating the motions of the planets: he is much more like a dog hunting for fleas. If a dog hunted for fleas on mathematical principles, basing his researches on statistics of area and population, he would never catch a flea except by accident.
A. E. Housman
» A. E. Housman - all quotes »
So, naturalists observe, a flea
Hath smaller fleas that on him prey;
And these have smaller still to bit 'em;
And so proceed ad infinitum.
Thus every poet, in his kind,
Is bit by him that comes behind.Jonathan Swift
Einstein is the only figure in the physical sciences with a stature that can be compared with Newton. Newton is reported to have said "If I have seen further than other men, it is because I stood on the shoulders of giants." This remark is even more true of Einstein who stood on the shoulders of Newton. Both Newton and Einstein put forward a theory of mechanics and a theory of gravity but Einstein was able to base General Relativity on the mathematical theory of curved spaces that had been constructed by Riemann while Newton had to develop his own mathematical machinery. It is therefore appropriate to acclaim Newton as the greatest figure in mathematical physics and the Principia is his greatest achievement.
Stephen Hawking
He that lies down with the Dogs, must rise with the fleas.
Thomas (writer) Fuller
Hee that lies with the dogs riseth with fleas.
George Herbert
Housman, A. E.
Houssaye, Arsene
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