The greatest mathematicians of all time

Even though I truly believe math is sexy, I know putting the term “mathematician” in the title has already cost half of the readers.
For the rest half, take a look at the picture above. How many of these geniuses can you recognize?
If you can name more than half of them, bravo! Please read on: http://fabpedigree.com/james/mathmen.htm
- Viewer discretion is advised: Once you start reading, it sucks your time like a black hole. -