Title: Major prophets of to-day
People: Elie Metchnikoff (1845-1916), Ernst Heinrich Philipp August Haeckel (1834-1919), Henri Bergson (1859-1941), Henri Poincaré (1854-1912), Ilʹi︠a︡ Ilʹīch Mechnīkov (1845-1916), Maurice Maeterlinck (1862-1949), Wilhelm Ostwald (1853-1932)