A theory has only the alternative of being right or wrong. A
model has a third possibility: it may read more

A theory has only the alternative of being right or wrong. A
model has a third possibility: it may be right, but irrelevant.

In theory, there is no difference between theory and practice.
But, in practice, there is.

In theory, there is no difference between theory and practice.
But, in practice, there is.

We all agree that your theory is crazy, but is it crazy enough?

We all agree that your theory is crazy, but is it crazy enough?

Sometimes a scream is better than a thesis.

Sometimes a scream is better than a thesis.