Source: Leisure, the Basis of Culture (1948), The Philosophical Act, p. 63
“What is philosophy? This is a notoriously difficult question. One of the easiest ways of answering it is to say that philosophy is what philosophers do, and then point to the writings of Plato, Aristotle, Descartes, Hume, Kant, Russell, Wittgenstein, Sartre, and other famous philosophers. However, this answer is unlikely to be of much use to you if you are just beginning the subject, as you probably won’t have read anything by these writers.”
Philosophy : the basics (Fifth Edition, 2013), Introduction
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Nigel Warburton 7
British author and lecturer 1962Related quotes

Conversations with Žižek by Slavoj Žižek and Glyn Daly (Cambridge: Polity Press, 2004), p. 54
Source: The Cambridge Companion to Newton, 2002, p. 1
But man is not made to live "out there" permanently! Certainly, it is a more valuable question, as such, to ask about the whole world and the ultimate nature of things. But the answer is not as easily forthcoming as for the special sciences!
The Dilthey quote is from Briefwechsel zwischen Wilhelm Dilthey und dem Grafen Paul Yorck v. Wartenberg, 1877–1897 (Hall/Salle, 1923), p. 39.
Source: Leisure, the Basis of Culture (1948), The Philosophical Act, pp. 109–111

The Myth of Sisyphus and other essays by Albert Camus, An Absurd Reasoning : Absurdity and Suicide p. 3 (1942, 1955)
Absurdity and Suicide
The Myth of Sisyphus (1942), An Absurd Reasoning
Context: There is but one truly serious philosophical problem and that is suicide. Judging whether life is or is not worth living amounts to answering the fundamental question of philosophy. All the rest – whether or not the world has three dimensions, whether the mind has nine or twelve categories – comes afterwards. These are games; one must first answer. And if it is true, as Nietzsche claims, that a philosopher, to deserve our respect, must preach by example, you can appreciate the importance of that reply, for it will precede the definitive act. These are facts the heart can feel; yet they call for careful study before they become clear to the intellect. If I ask myself how to judge that this question is more urgent than that, I reply that one judges by the actions it entails. I have never seen anyone die for the ontological argument.

Journals and Papers III 3284 (1841)
1840s, The Journals of Søren Kierkegaard, 1840s

Source: Culture and Value (1980), p. 15e

As quoted in Carl Friedrich Gauss: Titan of Science (1955) by Guy Waldo Dunnington. p. 362

trans. Michael Chase, p. 272
La Philosophie comme manière de vivre (2001)