An Englishman does everything on principle: he fights you on patriotic principles; he robs you on business principles; he enslaves you on imperial principles.
If you strike a child, take care that you strike it in anger, even at the risk of maiming it for life. A blow in cold blood neither can nor should be forgiven.
When the world goes mad, one must accept madness as sanity; since sanity is, in the last analysis, nothing but the madness on which the whole world happens to agree.