From a 1959 interview with Wilfrid Lemoyne, on Radio Canada.
Existentialists take human existence and the human condition to be a fundamental issue. They tend to be radical individualists who privilege our lived experience and choice. They focus on themes such as: freedom, authenticity, the individual, meaning, anxiety, alienation, death, dread, the absurd, contingency, and nihilism. They often are also suspicious of any fixed, pre-determined human nature, objective/universal values, and abstract philosophical systems. Some of the most important existentialist thinkers (or at least thinkers associated with existentialism) include Jean-Paul Sartre, Martin Heidegger, Søren Kierkegaard, Simone de Beauvoir, Friedrich Nietzsche, Dostoyevsky, Albert Camus, and Karl Jaspers.