The news that legendary physicist Stephen Hawking passed away on Wednesday morning brought a flood of tributes.

Everyone from scientists who admired him to celebrities who worked alongside him took to social media to express their sadness, share their stories and pay their respects to one of the world’s most celebrated minds.

Eddie Redmayne, who won an Oscar for his performance as a young Stephen Hawking in the 2014 film The Theory of Everything, was one of them.

“We have lost a truly beautiful mind, an astonishing scientist and the funniest man I have ever had the pleasure to meet,” said Redmayne in a statement sent to USA Today.

“My love and thoughts are with his extraordinary family.”