A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it.

The things I was allowed to experience, the people I was able to call friends, teammates, mentors, coaches and opponents, the travel, all of it, are far more than anything I ever thought possible in my lifetime.

Along with that ongoing process Sinn Fein took a decision to establish a peace commission which had the responsibility to travel around the country to receive submissions from the general public, also our opponents.

The more work you put in, and the more you constantly and consistently give good performances against good opponents and constantly exceed people's expectations, the more you really endear yourself to the crowd. That's how your career takes off - it's just consistency and time.

If you want to rip the heart out of a democracy, you go after the facts. That's what modern authoritarians do. You lie. All the time. Then, you say it's your opponents and the journalists who lie.

The opponents and I are really one. My strength and skills only half of the equation. The other half is theirs. An opponent is someone whose strength joined to yours creates a certain result.

My game was all about strength and mauling opponents.

Regardless of the obstacles or hurdles that are ahead of you, regardless of the opponent, regardless of the odds, your goal and objective always is to win. I think that's part of sports.

The first thing I learned in boxing is to not get hit. That's the art of boxing. Execute your opponent without getting hit. In sports school, we were putting our hands behind our backs and having to defend ourselves with our shoulders, by rolling, by moving round the ring, moving out feet.

You don't play against opponents, you play against the game of basketball.

When you get onto the ball, people think three or four times before deciding whether to try and tackle you. Your opponents respect you, and your markers give you a couple of metres of space.

I believe the most important thing for the defender is to take the ball away from the opposing team, no matter what, and not to allow any space or give any occasions for opponents to score goals.

I just smile. And they - my opponents don't like it when I smile at them. They think I'm playing or something. But - like I smile throughout the whole fight. Sometimes I'll be throwing combinations and I just smile and stick my tongue out at them.

A scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it.

I respect all my opponents.

Just as the common law derives from ancient precedents - judges' decisions - rather than statutes, baseball's codes are the game's distilled mores. Their unchanged purpose is to show respect for opponents and the game. In baseball, as in the remainder of life, the most important rules are unwritten. But not unenforced.

We will respect all our opponents, as we always do.

If a politician murders his mother, the first response of the press or of his opponents will likely be not that it was a terrible thing to do, but rather that in a statement made six years before he had gone on record as being opposed to matricide.

You see stuff that is cheating, no question, and it needs to be sorted out. The biggest thing is moving on the shot by an opponent.

The toughest opponent is me. A lot of times, you don't want to train. You don't want to box. Sometimes, life hits you to the point where you don't even want to live. You have to fight with that person. You have to make yourself wake up in the morning. You have to make yourself watch your weight. That's how I fight with that person.

I am a firm believer in open justice, and an opponent of closed justice in any normal circumstances. But I am also an opponent of legal purism, and have no time for institutionalised mythmaking - whether from the authoritarian right or the liberal left.

The idea behind reinforcement learning is you don't necessarily know the actions you might take, so you explore the sequence of actions you should take by taking one that you think is a good idea and then observing how the world reacts. Like in a board game where you can react to how your opponent plays.

To be elected president, you have to do more than tear down your opponents. You have to give the American people a reason to vote for you - a reason to hope - a reason to believe that under your leadership, America will be better.

Our intelligence agencies have vast powers, and Obama used them illegally to spy on political opponents. This can't be allowed to stand.