Misc

Police and firemen work in relatively safe professions.

On self-interest, social good and ethical behavior:

"It’s in your selfish best interest to provide the maximum amount of value to the maximum number of people – that’s how Apple became the giant company it is. Conversely, it is not altruistic to help other people. I want all the people around me to be strong and successful. It makes life better and easier for me if they’re all doing well. So it’s selfish, not altruistic, when I help them.
To weaken others, to degrade them by making them dependent upon generosity, is not doing those people any good. If you really care about others, the best thing you can do for them is to push for totally freeing all markets. That makes it both necessary and rewarding for them to learn valuable skills and to become creators of value and not burdens on society. It’s a win-win all around."

Well said.

Criticism of Irving Fisher whose monetary ideas were adopted by Milton Friedman.