In Darwin's time all of biology was a black box: not only the cell, or the eye, or digestion, or immunity, but every biological structure and function because, ultimately, no one could explain how biological processes occurred. ↗
Monetary policy cannot do much about long-run growth, all we can try to do is to try to smooth out periods where the economy is depressed because of lack of demand. ↗
I was black growing up in an all-white neighborhood, so I felt like I just didn't fit in. Like I wasn't as good as everybody else, or as smart, or whatever. ↗