Blaise Pascal (1623-1662) was a French mathematician, physicist, inventor, writer, and philosopher. He made significant contributions to mathematics and science, including the development of Pascal's theorem and Pascal's triangle. Pascal also conducted research in fluid mechanics and atmospheric pressure, leading to the invention of the hydraulic press and the first digital calculator. His most famous work, "Pensées," explored themes of faith, philosophy, and theology. Despite his short life, Pascal's impact on mathematics, science, and literature remains influential to this day.