# On This Day

• ### 9-2-1808

Gauss wrote Wolfgang Bolyai: "It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment."

Carl Friedrich Gauss
Farkas Wolfgang Bolyai
• ### 9-2-1841

Paul Matthieu Hermann Laurent born in Luxembourg. He developed statistical formulas for the calculation of actuarial tables and studied heat conduction.