You have not converted a man because you have silenced him- John Morley
The right of free and open discourse should be spread liberally in all our encounters. This is the hallmark of human interaction. Without this right, we cannot see the hidden gems that each of us have to give. Any organization that does not seek out opinions of all in an organization rust at it's core. Great thoughts and equally great opinions are sometimes hidden and come from perhaps the most humble and unassuming person in the entire room!