Philosophy, understood as first philosophy, is different from science. It is a discipline that is methodologically prior to science and, through a priori reflection, fashions general truths that provide a foundation of justification for scientific inquiry itself. It is the “supra-scientific tribunal” for science.
Sayfa 4 - quine'ın felsefe/naturalism anlayışıKitabı okudu
Lou and Rée, my dears!
Do not be too upset by my fits of “megalomania” or “wounded vanity.” And even if some emotional disturbance should happen to drive me to suicide, there would not be all that much to mourn. Why should my fantasies concern you? (Even my “truths” have not concerned you up to now.) Do bear in mind, you two, that at bottom I am sick in the head and half-insane, completely confused by long isolation.
I have arrived at this reasonable (or so I believe) insight into how matters stand after having, in desperation, taken an enormous quantity of opium. But instead of making me lose my senses, it seems to have finally brought me to them. [….]
Friend Rée, ask Lou to forgive me for everything. She will surely grant me another opportunity to forgive her too—I haven’t so far.
It’s much harder to forgive one’s friends than one’s enemies.
[The remainder of this letter, after a few words that begin a new paragraph, is lost.] 
Friedrich Nietzsche
It is idle to pretend that he would have been entirely displeased by this
phenomenon. During his lifetime (and unless I specify otherwise, I shall
always mean by that the one that finished when he
eleven years before his death) he was almost completely neglected,
a nd though that did not make him bitter, as hardly anything did, it
caused him distress because he believed that he had vital truths to
impart to his contemporaries which they were ignoring at a terrible
cost - one of his most accurate prophecies.
''All truths are easy to understand once they are discovered; the point is to discover them.''
Galileo Galilei
