There is no complete theory of anything.
Sentiment: NEGATIVE
I'm not sure what theory is, unless it's the pursuit of fundamental questions.
We don't regard any scientific theory as the absolute truth.
I don't think about a theory of everything when I do my research. And even if we knew the ultimate underlying theory, how are you going to explain the fact that we're sitting here? Solving string theory won't tell us how humanity was born.
Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve.
Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?
Never abandon a theory that explains something until you have a theory that explains more.
A good scientific theory is one which is falsifiable, which has not been falsified.
We know from science that nothing in the universe exists as an isolated or independent entity.
There is no falsification before the emergence of a better theory.
No theory changes what it is a theory about; man remains what he has always been.