Integral Quote by Vishen Lakhiani

“What we have, in fact, is not a theory at all but a large collection of approximate calculations, together with a web of conjectures…

— Lee Smolin

“The integrals which we have obtained are not only general expressions which satisfy the differential equation, they represent in the most distinct manner the…

— Anonymous

“You can be involved with theory; you can teach or study theory; you can hate theory or be afraid of it. None of this,…

— Jonathan Culler

I'm not sure what theory is, unless it's the pursuit of fundamental questions.

— David Antin

“In the past a theory could get by on its beauty; in the modern world a successful theory has to work for a living.”

— Howard Wainer

“The question is not, therefore, _whether_ a theory is grand or small, or whether it is universal/global or particular/local, but _what function_ a theory…

— Namsoon Kang

An announcement of [Christopher] Zeeman's lecture at Northwestern University in the spring of 1977 contains a quote describing catastrophe theory as the most important…

— Stephen Smale

“General Theory of Relativity.”

— Lee Vickers

If one looks at the different problems of the integral calculus which arise naturally when one wishes to go deep into the different parts…

— Henri Poincare

The greatest mathematicians, as Archimedes, Newton, and Gauss, always united theory and applications in equal measure.

— Felix Klein

“It is the theory which decides what can be observed”

— Albert Einstein

“ Réduites à des théories générales, les mathématiques seraient une belle forme sans contenu. Reduced to general theories, mathematics would be a beautiful form…

— Henri Lebesgue