I am perfectly convinced that I have both seen, and heard in a manner which should make unbelief impossible, things called spiritual which cannot be taken by a rational being to be capable of explanation by imposture, coincidence, or mistake. — Augustus De Morgan Copy Share Image
I end with a word on the new symbols which I have employed. Most writers on logic strongly object to all symbols. ... I should advise the reader not to make up his mind on this point until he has… — Augustus De Morgan Copy Share Image
Imagine a person with a gift of ridicule [He might say] First that a negative quantity has no logarithm; secondly that a negative quantity… — Augustus De Morgan Copy Share Image
But the gambling reasoner is incorrigible: if he would but take to squaring the circle, what a load of misery would be saved. — Augustus De Morgan Copy Share Image
Mathematicians care no more for logic than logicians for mathematics. — Augustus De Morgan Copy Share Image
As to writing another book on geometry [to replace Euclid] the middle ages would have as soon thought of composing another New Testament. — Augustus De Morgan Copy Share Image
“The genius of Laplace was a perfect sledge hammer in bursting purely mathematical obstacles; but, like that useful instrument, it gave neither finish nor… — Augustus De Morgan Copy Share Image
I did not hear what you said, but I absolutely disagree with you. — Augustus De Morgan Copy Share Image
During the last two centuries and a half, physical knowledge has been gradually made to rest upon a basis which it had not before.… — Augustus De Morgan Copy Share Image
I am perfectly convinced that I have both seen, and heard in a manner which should make unbelief impossible, things called spiritual which cannot… — Augustus De Morgan Copy Share Image
The imaginary expression √(-a) and the negative expression -b, have this resemblance, that either of them occurring as the solution of a problem indicates… — Augustus De Morgan Copy Share Image
All existing things upon this earth, which have knowledge of their own existence, possess, some in one degree and some in another, the power… — Augustus De Morgan Copy Share Image
The sacred writings excepted, no Greek has been so much read and so variously translated as Euclid. — Augustus De Morgan Copy Share Image
![“Imagine a person with a gift of ridicule [He might say] First that a negative quantity has no logarithm; secondly that a negative quantity has no square root; thirdly that the first non-existent is to the second as the circumference of a circle is to the diameter.” quote by Augustus De Morgan](https://sms4smile.com/quotes/img-quotes/17f/augustus-de-morgan-18916_circles_imagine-a-person-with-a-gift-of-ridicule_136734.jpg)
![“As to writing another book on geometry [to replace Euclid] the middle ages would have as soon thought of composing another New Testament.” quote by Augustus De Morgan](https://sms4smile.com/quotes/img-quotes/ed4/augustus-de-morgan-18916_age_as-to-writing-another-book-on-geometry-t_584350.jpg)
