Duty is the great business of a sea officer all private considerations must give way to it, however painful it may be.

Different taste in jokes is a great strain on the affections.

Genius at first is little more than a great capacity for receiving discipline.

I think one of the great problems we have in the Republican Party is that we don't encourage you to be nasty. We encourage you to be neat, obedient, loyal and faithful and all those Boy Scout words, which would be great around a campfire but are lousy in politics.

Rock 'n' roll is ridiculous. It's absurd. In the past, U2 was trying to duck that. Now we're wrapping our arms around it and giving it a great big kiss.

A great source of calamity lies in regret and anticipation therefore a person is wise who thinks of the present alone, regardless of the past or future.

I was an OK boxer, I wasn't great, I was OK, but I loved the discipline of getting together every Monday, Wednesday and Friday, usually Saturday afternoons too, with a whole bunch of mates and training, very, very hard for about two-and-half hours.

All of the great leaders have had one characteristic in common: it was the willingness to confront unequivocally the major anxiety of their people in their time. This, and not much else, is the essence of leadership.

I went through life like an idiot for a great deal of the time, saying there's nothing I would change. That was a very arrogant thing to say. There's a lot I would change. There are people I would have steered clear of.

A great tennis career is something that a 15-year-old normally doesn't have. I hope my example helps other teens believe they can accomplish things they never thought possible.