The politician has not to revenge what has happened but to ensure that it does not happen again. - Otto von Bismarck

Hit the Poles so hard that they despair of their life; I have full sympathy with their condition, but if we want to survive, we can only exterminate them; the wolf, too, cannot help having been created by God as he is, but people shoot him for it if they can.

Fools say that they learn by experience. I prefer to profit by others experience.

In the domain of political economy the abstract doctrines of science leave me perfectly cold, my only standard of judgment being experience.