Do you agree with this?

Now I have a new post for you. It is about the words of the man in the photo below.  I would like to ask you about these points:

1.- Can you tell me something about who  is Thomas Sowell ?

2.-What do you think about the meaning in the text of the word "scarcity"?

3.-Can you connect it with the explanations given in class about the choice theory in economics?

4.-Do you think that he is right