“First, anyone who seriously intends to become a philosopher must "once in his life" withdraw into himself and attempt, within himself, to overthrow and build anew all the sciences that, up to then, he has been accepting.”
Edmund Husserl, Cartesian Meditations (1931). Méditations cartésiennes
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Edmund Husserl 7
German philosopher, known as the father of phenomenology 1859–1938Related quotes

Variant translations:
Above all, do not lie to yourself. A man who lies to himself and listens to his own lie comes to a point where he does not discern any truth either in himself or anywhere around him, and thus falls into disrespect towards himself and others. Not respecting anyone, he ceases to love, and having no love, he gives himself up to passions and coarse pleasures, in order to occupy and amuse himself, and in his vices reaches complete bestiality, and it all comes from lying continually to others and to himself. A man who lies to himself is often the first to take offense. It sometimes feels very good to take offense, doesn't it? And surely he knows that no one has offended him, and that he himself has invented the offense and told lies just for the beauty of it, that he has exaggerated for the sake of effect, that he has picked on a word and made a mountain out of a pea — he knows all of that, and still he is the first to take offense, he likes feeling offended, it gives him great pleasure, and thus he reaches the point of real hostility… Do get up from your knees and sit down, I beg you, these posturings are false, too.
Part I, Book I: A Nice Little Family, Ch. 2 : The Old Buffoon; as translated by Richard Pevear and Larissa Volokhonsky, p. 44
The Brothers Karamazov (1879–1880)

Le philosophe se place au sommet de la pensée; de là il envisage ce qu'a été le monde et ce qu'il doit devenir. Il n'est pas seulement observateur, il est acteur; il est acteur du premier genre dans le monde moral, car ce sont ses opinions sur, car ce sont ses opinions sur ce que le monde doit devenir qui règlent la société humaine.
Science de l'homme: Physiologie religieuse (1858), p. 437

letter to w:Alfred Sieglitz, June 1911, Hartley Archive, Yale University; as quoted in Marsden Hartley, by Gail R. Scott, Abbeville Publishers, Cross River Press, 1988, New York p. 147
1908 - 1920

Diary of an Unknown (1988), On Invisibility
Context: Man seeks to escape himself in myth, and does so by any means at his disposal... unnable to withdraw into himself, he disguises himself. Lies and inaccuracy give him a few moments of comfort, the trifling feeling of escape experienced at a masked ball. He distances himself from that which he feels and sees. He invents. He transfigures. He mythifies. He creates. He fancies himself an artist. He imitates, in his small way, the painters he claims are mad.
“The Importance of Cultural Freedom,” pp. 30-31.
Life Without Prejudice (1965)