Watch some of Stephen Hawking's interesting speeches here

Stephen Hawking wowed everyone with his mental genius and became a household name despite his disabilities. Technology allowed him to do his research. The wheelchair and the machine attached to it transcribed his thoughts. Here is a collection of some of his speeches.

Let's start with this Bloomberg video to understand how he was speaking to us.

Stephen Hawking's Voice and the Machine That Powers It 

What existed before the Big Bang?

  

Hawking won the Special Breakthrough Prize in Fundamental Physics, in 2013. Here is the speech he delivered during the ceremony.

In this TED Talk, Hawking talks about understanding fundamental questions like, How did the universe begin? How did life begin? Are we alone in the universe?

His views on God 

Hawking also felt that efforts to develop artificial intelligence (AI) and the creation of thinking machines could spell the end of the human race.