Quote by Daniel Jackson

“In other words, general set theory is pretty trivial stuff really, but, if you want to be a mathematician, you need some and here…

— Paul Halmos

Experience has shown repeatedly that a mathematical theory with a rich internal structure generally turns out to have significant implications for the understanding of…

— William Thurston

For we do not think that we know a thing until we are acquainted with its primary conditions or first principles, and have carried…

— Aristotle

“idea models—models that are simple enough to study via mathematics or computers but that nonetheless capture fundamental properties of natural complex systems.”

— Melanie Mitchell

“If theory means a reasonably systematic reflection of our guiding assumptions, it remains as indispensable as ever.”

— Terry Eagleton

General Systems Theory is a name which has come into use to describe a level of theoretical model-building which lies somewhere between the highly…

— Kenneth E. Boulding

The standard "foundation" for mathematics starts with sets and their elements. It is possible to start differently, by axiomatising not elements of sets but…

— Saunders Mac Lane

“We do not come to ‘know’ an entity theoretically through contemplative knowledge in the first instance. As we have already seen, we come to…

— Barbara Bolt

“We know things with our lives and we live that knowledge, beyond what any theory has yet theorized.”

— Catharine MacKinnon

To not know math is a severe limitation to understanding the world.

— Richard P. Feynman

“But theory rarely works in practice, and predictability has a devious sister named complexity. But”

— Jurgen Appelo

'theres a theory for everything & without theory there is no practice'

— Issac Newton