Quote of the day
Nothing is impossible in this world. Firm determination, it is said, can move heaven and earth. Things appear far beyond one's power, because one cannot set his heart on any arduous project due to want of strong will.
Ludwik Fleck

Born: July 11, 1896
Died: June 5, 1961 (aged 64)
Bio: Ludwik Fleck was a Polish and Israeli physician and biologist who did important work in epidemic typhus in Lwów, Poland, with Rudolf Weigl and in the 1930s developed the concept of the "Denkkollektiv".