Augustus De Morgan

Imagine a person with a gift of ridicule [He might say] First that a negative quantity has no logarithm; secondly that a…

— Augustus De Morgan

Common integration is only the memory of differentiation...

— Augustus De Morgan

But the gambling reasoner is incorrigible: if he would but take to squaring the circle, what a load of misery would be…

— Augustus De Morgan

Mathematicians care no more for logic than logicians for mathematics.

— Augustus De Morgan

As to writing another book on geometry [to replace Euclid] the middle ages would have as soon thought of composing another New…

— Augustus De Morgan

“The genius of Laplace was a perfect sledge hammer in bursting purely mathematical obstacles; but, like that useful instrument, it gave neither…

— Augustus De Morgan

I did not hear what you said, but I absolutely disagree with you.

— Augustus De Morgan

During the last two centuries and a half, physical knowledge has been gradually made to rest upon a basis which it had…

— Augustus De Morgan

I am perfectly convinced that I have both seen, and heard in a manner which should make unbelief impossible, things called spiritual…

— Augustus De Morgan

The imaginary expression √(-a) and the negative expression -b, have this resemblance, that either of them occurring as the solution of a…

— Augustus De Morgan

All existing things upon this earth, which have knowledge of their own existence, possess, some in one degree and some in another,…

— Augustus De Morgan

The sacred writings excepted, no Greek has been so much read and so variously translated as Euclid.

— Augustus De Morgan

I was x years old in the year x2.

— Augustus De Morgan

It is easier to square the circle than to get round a mathematician.

— Augustus De Morgan

My opinion of mankind is founded upon the mournful fact that, so far as I can see, they find within themselves the…

— Augustus De Morgan

Wrong hypotheses, rightly worked from, have produced more useful results than unguided observations.

— Augustus De Morgan

The gambling reasoner is incorrigible; if he would but take to the squaring of the circle, what a load of misery would…

— Augustus De Morgan

I don't quite hear what you say, but I beg to differ entirely with you.

— Augustus De Morgan

We know that mathematicians care no more for logic than logicians for mathematics. The two eyes of science are mathematics and logic;…

— Augustus De Morgan

The Astronomer's Drinking Song Astronomers! What can avail Those who calumniate us; Experiment can never fail With such an apparatus...

— Augustus De Morgan

“ Isaac Newton was born at Woolsthorpe, near Grantham, in Lincolnshire, 1642: a weakly and diminutive infant, of whom it is related…

— Augustus De Morgan

Considerable obstacles generally present themselves to the beginner, in studying the elements of Solid Geometry, from the practice which has hitherto uniformly…

— Augustus De Morgan

The moving power of mathematical invention is not reasoning but imagination.

— Augustus De Morgan

It should seem that it is easier to square the circle than to get round a mathematician.

— Augustus De Morgan

Every science that has thriven has thriven upon its own symbols: logic, the only science which is admitted to have made no…

— Augustus De Morgan