Santiago Ramón y Cajal in his early twenties, c. 1870. The father of modern neuroscience (who mapped the anatomy of the neuron and its cells) was also an amateur bodybuilder and gymnast in his youth.
Here he is with a beard, c. 1876. Cajal really gets our neurons firing, if you know what I mean.
Submitted by coveted



![Lew Wallace, c. 1853, in his mid-twenties. Union general, governor of New Mexico territory, diplomat to the Ottoman Empire, where he gathered material for the bestselling Ben-Hur (which Ulysses S. Grant reportedly read in a single 30-hour sitting.)
From the submitter cmcdwh:
This handsome fellow is my great-great-grandfather, Lew Wallace, around 1853. The daguerreotype was taken around 1853 and is owned by the General Lew Wallace Study in Crawfordsville, Indiana. By the time he was a Major-General in the Civil War, Lew had grown an impressive beard, but I like him better this way. Lew sat on the military tribunal that tried another daguerreotype boyfriend, Lewis Thornton Powell. [Ed: Gasp!]](http://25.media.tumblr.com/384e1808fa555e3420ea1f9a73615ce0/tumblr_mkaovfyime1qkgs51o1_1280.jpg)


