Nikola Tesla was voluntarily chaste because he believed sex inhibited his abilities to think in a scientific matter!
Nikola Tesla is most famously known for his contributions to the design of the alternating current electricity system, but he's also credited with around 300 other patents for all kinds of inventions.
Throughout his life, he was continually working on projects and getting things done. While he certainly had his share of bad habits (he'd often work on two hours of sleep), one doesn't do as much as Tesla did without a strict set of productivity tips.
At some point of his life, Nikola Tesla was voluntarily chaste, despite numerous women "vying for his affections... some even madly in love with him", because he believed sex inhibited his abilities to think in a scientific manner.
Maybe that’s why he was able to invent so many things!