The aristocrat who studied democracy the way a physician studies a patient he loves: naming the disease early, while there is still time.
The philosopher of liberty who argued that even a false opinion has its uses — and that your fiercest critic is doing you a service.
The pen of the Revolution: natural rights, self-government, and a lifelong war on concentrated power — carried on chiefly by letter.
The economist of knowledge nobody has — and the man who met Pinochet and called a temporary dictatorship a route back to liberty.