Richard Stallman
(looking on his left)
©Maurizio Scorianz
Stallman is a great computer scientist, father of Emacs and the GNU project. He only lacks being the father of linux so that the legend be complete, although technically, he is a bit that as well.
He is also a freedom activist. He founded the Free Software Foundation that promotes the freedom to create, distribute and modify computer code.
He is a major thinker of our time, who concludes that a free society (free in the sense of freedom) is not only possible, it is also better.