The Eleventh Doctor was one of the most youthful regenerations the character has ever taken on, yet his level of enthusiasm and excitement was tempered with an old soul's level of experience and grittiness. As such, he jumped back and forth between boy scout and tired Time Lord on multiple occasions before finally throwing in the towel.

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Eleventh Doctor was responsible for quite a few memorable quotes during his run on Doctor Who. Here's a list of the best and most memorable quotes from the Doctor, some of which are funny, others tragic, and the rest quite poignant.

The End Of Time, Part 2

The Thirteenth Doctor after his regeneration

"Geronimo!"

The Eleventh Doctor set himself apart from his other incarnations with this signature tagline that stuck with him throughout the series. He first shouted the word right after the Tenth Doctor had regenerated which proved traumatic for the Tardis.

While the new Doctor marveled at his fresh new physical features, the Tardis burst into flames and proceeded to fall out of the sky. It didn't seem to faze this newest Doctor very much, as he went along with the joyride with excitement.

The Eleventh Hour

Eleven speaks to the Atraxi in Doctor Who.

"Hello, I'm the Doctor. Basically... run!"

The Doctor was never shy about demonstrating his protectiveness over the planet Earth, whether it be towards the Sycorax, the Cybermen, or Atraxi decided to attack Earth, he was more than ready to take them on despite the threat they posed.

His reputation had preceded him by that point, and once the Doctor uttered this quote, the Atraxi wisely paid heed, turned tail, and ran.

The Vampires Of Venice

The Doctor working on the Tardis

"I like the bit when someone says 'It's bigger on the inside.' I always look forward to that."

A recurring Doctor Who gag involves companions and other characters wandering into the Tardis for the first time, only to scratch their heads at the seemingly impossible size paradox compared to the exterior. It usually ends with them remarking how much bigger it is on the inside. When that doesn't happen, the Doctor can be quite disappointed indeed.

Amy's Choice

Eleventh Doctor

"Bowties are cool."

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The Eleventh Doctor wasn't the snappiest of dressers, even when compared to some of his more outrageous past selves. Although bowties were far more fashionable than sequenced outfits dotted with question marks, or celery sticks on a lapel, they were in no way as cool as the Doctor claimed them to be.

Nevertheless, he remained undeterred throughout his run and revisited the bowtie accessory many times over.

Cold Blood

The Thirteenth Doctor gives advice

"There are fixed points throughout time where things must stay exactly the way they are. This is not one of them. This is an opportunity! Whatever happens here will create its own timeline, its own reality, a temporal tipping point. The future revolves around you, here...now, so do good!"

The Doctor was an expert when it came to dealing with the flow of time, and he knew when and where to meddle as well as when to back off. If the Doctor found himself in a situation where he was able to interfere with the timeline, he always attempted to do as much good as possible in the moment. It's a recommendation he pays forward with this quote.

Vincent And The Doctor

Amy Pond & the Thirteenth Doctor

"The way I see it, every life is a pile of good things and bad things. The good things don’t always soften the bad things, but vice versa the bad things don’t always spoil the good things, or make them unimportant. And we definitely added to his pile of good things."

The Doctor speaks words of great wisdom with this quote that touches on the importance of recognizing the balance in life. Though evil deeds and horrible events to take place, they tend to feature a silver lining. Similarly, good actions and intentions don't always make up for the evils we see in our world. Failing to recognize either scenario can lead to disappointment and nihilism.

Day Of The Moon

The Eleventh Doctor looking concerned and sad

"Safe? No! Of course you're not safe! There's about a billion other things out there just waiting to burn your whole world, but if you want to pretend you're safe just so you can sleep at night, then okay, you're safe - but you're not really!"

The Eleventh Doctor wasn't afraid to tell it like it was, regardless of people's feelings. This blunt approach was probably for the best, as it reminded people to stay vigilant and on guard rather than become complacent and overly comfortable. It's sound advice that should be tempered with a degree of optimism as well since threats don't necessarily equate to inevitable outcomes.

Night Terrors

Creepy dolls in Doctor Who

"Through crimson stars and silent stars and tumbling nebulas like oceans set on fire, through empires of glass and civilizations of pure thought, and a whole, terrible, wonderful universe of impossibilities. You see these eyes? They're old eyes... and one thing I can tell you, Alex: monsters are real."

This episode dealt with the Doctor answering a call from a young boy who is afraid of monsters in his cupboard. Instead of reassuring the child that there's no such thing as monsters, the Doctor decided to gift the boy with a dose of reality. Research has actually shown that it's unhealthy for children to feel safe all of the time, as it can have damaging effects later on in life when they are unable to cope with problems. Overcoming the fear of real monsters is where true courage lies.

The Angels Take Manhattan

Amy Pond says goodbye to the Doctor

"Amy, please...just come back into the TARDIS! Come along, Pond! Please!"

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The Eleventh Doctor was never at his most vulnerable moment as he was when Amy Pond decided to allow a Weeping Angel to "kill" her. After Rory was ambushed in a cemetery, she and the Doctor spotted the culprit Angel waiting for the opportunity to strike again. Realizing that Rory had been transported back through time, she made the tough decision to leave the Doctor and be with him by allowing herself to be attacked as well.

The Eleventh Doctor knew that this would create a fixed point in time that would prevent him from seeing her again, and pleaded with her to reconsider. In the end, Amy said her goodbyes before the Angel attacked, leaving the Doctor distraught and in tears.

The Time Of The Doctor

An aged Thirteenth Doctor

"I'm the Doctor. I’m a Time Lord from the planet Gallifrey. I stole a time machine and ran away, and I've been flouting the principle law of my own people ever since."

The Eleventh Doctor came to with his own past in this episode when he uttered this quote summing up his life. The Time Lords of Gallifrey were renowned for their non-interference stance on galactic affairs, even if they routinely broke that tenant in secret.

The Doctor understood the overall implications of Time Lord law, but he spent multiple regenerations violating it. At one point, the Doctor was put on trial by the Time Lords for crimes against all of sentient creation which proved just how much of a renegade he was.

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