Today is Earth Day, a day where people all over the world will come together to recognize the impact human activity has on the environment. However, on Sunday, when it's over, people will go back to their normal lives, and people who cared will still care, and people who don't, won't.

Here are some quotes from important people to help you understand just how significant the Earth and the environment is.

1. “The environment is where we all meet; where all have a mutual interest; it is the one thing all of us share.” — Lady Bird Johnson

2. “Earth provides enough to satisfy every man’s need, but not every man’s greed.” —Gandhi

3. “We do not inherit the earth from our ancestors, we borrow it from our children.” —Native American Proverb

4. The wealth of the nation is its air, water, soil, forests, minerals, rivers, lakes, oceans, scenic beauty, wildlife habitats and biodiversity… that’s all there is. That’s the whole economy. That’s where all the economic activity and jobs come from. These biological systems are the sustaining wealth of the world. — Gaylord Nelson

5. On Earth Day, we celebrate all the gifts the world and nature make available to us. We recognize our complete dependence on its bounty. And we acknowledge the need for good stewardship to preserve its fruits for future generations. — John Hoeven

6. “The ultimate test of man's conscience may be his willingness to sacrifice something today for future generations whose words of thanks will not be heard.” ― Gaylord Nelson

7. “Only when the last tree has died and the last river been poisoned and the last fish been caught will we realize we cannot eat money.” — Cree Indian Proverb

8. “Suburbia is where the developer bulldozes out the trees, then names the streets after them.” — Bill Vaughn

9. "For two hundred years we've been conquering Nature. Now we're beating it to death." — Tom McMillan

10. "Here is your country. Cherish these natural wonders, cherish the natural resources, cherish the history and romance as a sacred heritage, for your children and your children’s children. Do not let selfish men or greedy interests skin your country of its beauty, its riches or its romance.” — Theodore Roosevelt