Bernard, absolutely no hard feelings at all, it will be a sad day if people cannot agree to disagree and impose their views on others.
On a one to one basis I have always express my views and backed it up with arguments and facts. I do not expect people to take them on board as we all are different and our circumstances too.
I, remember on my first day at work my boss told me to treat everybody as an idiot. I felt that was not nice and besides very arrogant on his part.
very soon I understood and saw what he meant. .