To do your best is no longer good enough. We now have to do the seemingly impossible.

The real danger is not inaction. The real danger is when politicians and CEOs are making it look like action is happening when in fact nothing is being done.

Why should I be studying for a future that soon may not exist?

Before I started school striking I had no energy, no friends and I didn't speak to anyone. I just sat alone at home, with an eating disorder. All of that is gone now, since I have found a meaning, in a world that sometimes seems shallow and meaningless to so many people.

I remember when I was younger, and in school, our teachers showed us films of plastic in the ocean, starving polar bears and so on. I cried through all the movies. My classmates were concerned when they watched the film, but when it stopped, they started thinking about other things. I couldn't do that. Those pictures were stuck in my head.

Social media can be very effective in creating movements. In the beginning, that is how I first got attention.

I don't care about hate and threats from climate crisis deniers. I just ignore them.

At places like Davos, people like to tell success stories. But their financial success has come with an unthinkable price tag. And on climate change, we have to acknowledge we have failed.

For 25 years countless people have come to the U.N. climate conferences begging our world leaders to stop emissions and clearly that has not worked as emissions are continuing to rise. So I will not beg the world leaders to care for our future. I will instead let them know change is coming whether they like it or not.

I am an introvert; privately I am very shy, and I don't speak unless I have to.

I want you to panic. I want you to feel the fear I feel every day. And then I want you to act.

If burning fossil fuels was so bad that it threatened our very existence, how could we just continue like before? Why were there no restrictions? Why wasn't it made illegal? To me, that did not add up.

At first when I heard about climate change, I was a climate denier. I didn't think it was happening. Because if there really was an existential crisis like that, that would threaten our civilisation, we wouldn't be focusing on anything else. That would be our first priority. So I didn't understand how that added up.

I don't care about age. Nor do I care about those who do not accept the science. I don't have as much experience, and therefore I listen more. But I also have the right to express my opinion, no matter my age.

People are unaware of what is going on. When I talk to people, they know the basics, they know the planet is warming because of greenhouse gases... but they don't know the actual consequence of that.

You can rebel in different ways. Civil disobedience is rebelling. As long as it's peaceful, of course.

The most common criticism I get is that I'm being manipulated and you shouldn't use children in political ways, because that is abuse, and I can't think for myself and so on. And I think that is so annoying! I'm also allowed to have a say - why shouldn't I be able to form my own opinion and try to change people's minds?

I just want to be just as everyone else. I want to educate myself and be just like a normal teenager.

Of course, individual change doesn't make much difference in a holistic picture... but we need both systemic change and individual change.

The symbolism of the climate strike is that if you adults don't give a damn about my future, I won't either.

By stopping flying, you don't only reduce your own carbon footprint but also that sends a signal to other people around you that the climate crisis is a real thing and that helps push a political movement.

Many people listen to what I have to say and I appear a lot in media, so therefore I influence a lot of people and therefore I have a bigger responsibility because I have a bigger platform.

Solving the climate crisis is the greatest and most complex challenge that homo sapiens have ever faced. The main solution, however, is so simple that even a small child can understand it. We have to stop our emissions of greenhouse gases.

I have Asperger's, I'm on the autism spectrum, so I don't really care about social codes. It makes you think differently.

We can't just choose to tell some facts and not others because we don't want to upset people. We have to tell it like it is.

Many people seem to have this double moral. They say one thing and then do another thing. They say that the climate crisis is very important and yet they do nothing about it.

We have to understand what the older generation has dealt to us, what mess they have created that we have to clean up and live with.

I like school and I like learning.

For way too long the politicians and people in power have got away with not doing anything at all to fight the climate crisis and ecological crisis.

I have been on the road and visited numerous places and met people from all over the globe. I can say that it looks nearly the same everywhere I have been: The climate crisis is ignored by people in charge, despite the science being crystal clear.

I don't use any animal products, both because of ethical and environmental and climate reasons.

I want the politicians to prioritise the climate question, focus on the climate and treat it like a crisis.

Giving up cannot be an option.

I have always been that girl in the back who doesn't say anything.

Some people can just let things go, but I can't, especially if there's something that worries me or makes me sad.

Sometimes it's Tune-berg, sometimes Thunn-berg. I mean, I think it's funny that everyone pronounces it differently. So, that is just - I don't mind anyone pronouncing it wrong. There's no wrong way to pronounce it. Everyone pronounces it in their own way.

When I'm really interested in something, I get superfocused on that. And I can spend hours upon hours not getting tired of reading about it and still be interested to learn more about it.

I'm on the autism spectrum. I don't usually follow social coding and so therefore I go my own way.

Many people, especially in the U.S., see countries like Sweden or Norway or Finland as role models - we have such a clean energy sector, and so on. That may be true, but we are not role models.

I know so many people who feel hopeless, and they ask me, 'What should I do?' And I say: 'Act. Do something.' Because that is the best medicine against sadness and depression.

I mean, people aren't continuing like this and not doing anything because they are evil, or because they don't want to. We aren't destroying the biosphere because we are selfish. We are doing it simply because we are unaware.

I see the world in black and white, and I don't like compromising.

Learning about climate change triggered my depression in the first place. But it was also what got me out of my depression, because there were things I could do to improve the situation. I don't have time to be depressed anymore.

I write all of my own speeches.

I have promised myself that I'm going to do everything I can for as long as I can.

I think in many ways that we autistic are the normal ones and the rest of the people are pretty strange. They keep saying that climate change is an existential threat and the most important issue of all. And yet they just carry on like before.

If there really was a crisis, and if this crisis was caused by our emissions, you would at least see some signs. Not just flooded cities, tens of thousands of dead people, and whole nations leveled to piles of torn down buildings. You would see some restrictions. But no. And no one talks about it.

Some people say that I should study to become a climate scientist so that I can 'solve the climate crisis.' But the climate crisis has already been solved. We already have all the facts and solutions. All we have to do is to wake up and change.

It is hard sometimes to always be at the centre of attention, but when you talk about me you also have to talk about the climate.

I do not see myself as a celebrity or an icon or things like that... I have not really done anything.