Karl Pearson — British Mathematician born on March 27, 1857, died on April 27, 1936

Karl Pearson FRS was an influential English mathematician and biostatician. He has been credited with establishing the discipline of mathematical statistics, and contributed significantly to the field of biometrics, meteorology, theories of social Darwinism and eugenics. Pearson was also a protégé and biographer of Sir Francis Galton... (wikipedia)

Statistics is the grammar of science.
The mathematician, carried along on his flood of symbols, dealing apparently with purely formal truths, may still reach results of endless importance for our description of the physical universe.