An ad hominem attack against an individual, not against an idea, is highly flattering. It indicates that the person does not have anything intelligent to say about your message.

If my detractors knew me better they would hate me even more.

As countries get rich they start increasing education and the very educated people tend to not like trial and error, because they think they're obligated to use the body of knowledge they have.

Economics make homeopath and alternative healers look empirical and scientific.

Failure saves lives. In the airline industry, every time a plane crashes the probability of the next crash is lowered by that.

The imagination of the genius vastly surpasses his intellect; the intellect of the academic vastly surpasses his imagination

Your reputation is harmed the most by what you say to defend it.