Joaquin Phoenix's Oscar speech tackled social justice. It's not the first time he used a speech as a platform.

Joaquin Phoenix is no stranger to using his platform to talk about social justice and has addressed a variety of issues during this year's award season.

Closing out the awards circuit last night at the Oscars, Phoenix called out an "egocentric worldview" and encouraged people to love each other more and drink less dairy.

Here are the highlights from his speeches earlier this season:

At the Golden Globes:

The Globes highlighted environmentalism with both presenters and winners calling for viewers to donate to the Australian Bushfires, along with serving a plant-based meal to all of its guests that night.

Phoenix called out the lifestyles of the rich and famous and asked them to reflect on how they contribute to climate change.

"We don't have to take private jets to Palm Springs for the awards sometimes or back, please," he said.

At the BAFTAs: 

The British Academy Film and Television Arts (BAFTAs) nominated zero people of color in 2020, somehow, despite the celebrated films created by and starring diverse casts.

After winning best actor at the awards, Phoenix acknowledge how this is an example of systemic racism in this industry.

"I think we send a very clear message to people of color that you're not welcome here. I think that's the message we're sending to people that have contributed so much to our medium and our industry and in ways that we benefit from," he said in his speech.

At the Academy Awards:

After becoming the second performer to win an Oscar for the role of the Joker, Phoenix took a stance against the dairy industry in his acceptance speech.

"We feel entitled to artificially inseminate a cow, and when she gives birth, we steal her baby," Phoenix, a lifelong vegan, told the crowd. "And then we take her milk that's intended for her calf and we put it in our coffee and cereal."