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 …

- 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; the mathematica…

- Augustus De Morgan

Lagrange, in one of the later years of his life, imagined that he had overcome the difficulty (of the parallel axiom). He went so far as to write a p…

- Augustus De Morgan

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

- Augustus De Morgan

Mathematicians care no more for logic than logicians for mathematics.

- Augustus De Morgan

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

- Augustus De Morgan

I was x years old in the year x2.

- Augustus De Morgan

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

- Augustus De Morgan

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

- Augustus De Morgan