 Much of his work was devoted to the relation of philosophy and modern physics, especially the philosophy of space and time and metaphysics.Čapek was born in the municipality of Třebechovice in present-day Czech Republic (then part of Austria-Hungary).He was married to Stephanie Čapek (born Štěpánka Řežábková), who was a school teacher in Czechoslovakia and later a housewife, and died on July 14, 1998 (aged 82), in Little Rock, Arkansas.