pride oneself

One prides oneself on the ability to work out the obscure cases.

It is foolish to be interested in all that happens in the world; to pride oneself on one's knowledge of the market, of the King of England's plans, the news from Rome, conditions in Denmark.

Still, you never can tell; it don' do to pride oneself on anything.

It is no longer proper—as in Homeric days—to pride oneself on one's cleverness in perjury and common falsehood.