David Bohm was an American-born British physicist who wrote the book on Quantum Theory and then wrote more on why it is wrong.

Quotes by David Bohm in Time One

[I]n picturing an object at an absolutely definite position in space we cannot seem to help picturing it as fixed. In other words, we cannot think of the position of an object and of its velocity simultaneously.

A dialogue can be among any number of people, not just two. Even one person can have a sense of dialogue within himself, if the spirit of the dialogue is present.