Source: Confessions of a Philosopher (1997), p. 157
Context: As Voltaire once remarked, "It is the privilege of the real genius, especially one who opens up a new path, to make great mistakes with impunity." The Copernican revolution brought about by Kant was, I think, the most important single turning point in the history of philosophy. For that reason there has been, ever since, a watershed in understanding between those who have taken his work on board and those who have not. For a good many of the problems he uncovered, the solutions he put forward have not stood the test of time, but his uncovering of the problems remains the most illuminating thing a philosopher has ever done. Because of the fundamental character of these problems, and because Kant did not solve them, confronting them has been the most important challenge to philosophy ever since.
“Confront a corpse at least once. The absolute absence of life is the most disturbing and challenging confrontation you will ever have.
David Bowie”
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British musician, actor, record producer and arranger 1947–2016Related quotes

Stone Ridge School of the Sacred Heart graduation commencement speech https://www.youtube.com/watch?v=YJSOOYx6wYM, .
2010s

“Life, not death, is the great mystery you must confront.”
Source: The Final Testament of the Holy Bible

Salome Zourabichvili (2021) cited in: " Georgia greets 2022 with prospects of a ‘murky national accord’ https://oc-media.org/features/georgia-greets-2022-with-prospects-of-a-murky-national-accord/" in OC Media, 30 December 2021.

My Twenty-One Years in the Fiji Islands (English translation by J.D. Kelly & U.K. Singh, Fiji Museum, 1991).

Our Country at the Crossroads - 2001 Parkinson Memorial Lecture Series, 15 August 2001 http://www.usp.ac.fj/journ/docs/news/wansolnews/wansol1508013.html.

2000s
Context: Depression is the most unpleasant thing I have ever experienced. … It is that absence of being able to envisage that you will ever be cheerful again. The absence of hope. That very deadened feeling, which is so very different from feeling sad. Sad hurts but it's a healthy feeling. It's a necessary thing to feel. Depression is very different.
As quoted in "J. K. Rowling : The Interview," by Ann Treneman in The Times (30 June 2000) http://www.accio-quote.org/articles/2000/0600-times-treneman.html

1960s, A Time for Choosing (1964)