One of the issues I kept saying to my students is you have to learn to interrupt. When you raise your hand at a meeting, by the time they get to you, the point is not germane. So the bottom line is active listening. If you are going to interrupt, you look for opportunities. You have to know what you're talking about.
There are two men in each one of us: the scientist, he who starts with a clear field and desires to rise to the knowledge of Nature through observations, experimentation and reasoning, and the man of sentiment, the man of belief, the man who mourns his dead children, and who cannot, alas, prove that he will see them again, but who believes that he will, and lives in the hope – the man who will not die like a vibrio, but who feels that the force that is within him cannot die.