[workthrowaway]

> In theory there’s no difference between theory and practice, in practice there is.

love this :)

[scott_s]

I prefer: The only difference between theory and practice is that in theory there is no difference between theory and practice.

[dkersten]

I've always liked this version best: "The difference between practice and theory is greater in practice than it is in theory."

[larrik]

My favorite version is "The difference between theory and practice is small in theory and large in practice."

[beckingz]

Yogi's finest.

[greenyoda]

It seems that this quote predates Yogi, with a known usage in 1882: https://quoteinvestigator.com/2018/04/14/theory