The auspices for philosophy ...

The auspices for philosophy are bad if, when proceeding ostensibly on the investigation of truth, we start saying farewell to all uprightness, honesty and sincerity, and are intent only on passing ourselves off for what we are not. We then assume, like those three sophists [Fichte, Schelling and Hegel], first a false pathos, then an affected and lofty earnestness, then an air of infinite superiority, in order to impose where we despair of ever being able to convince.
The auspices for philosophy are bad if, when proceeding ostensibly on the investigation of truth, we start saying farewell to all uprightness, honesty and sincerity, and are intent only on passing ourselves off for what we are not. We then assume, like those three sophists [Fichte, Schelling and Hegel], first a false pathos, then an affected and lofty earnestness, then an air of infinite superiority, in order to impose where we despair of ever being able to convince.
 Arthur Schopenhauer

Quotes from the same author

Every man takes the limits of his own field of vision for the limits of the world.
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 Arthur Schopenhauer
In action a great heart is the chief qualification. In work, a great head.
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 Arthur Schopenhauer
If children were brought into the world by an act of pure reason alone, would the human race continue to exist? Would not a man rather have so much sympathy with the coming generation as to spare it the burden of existence, or at any rate not take it upon himself to impose that burden upon it in cold blood?
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 Arthur Schopenhauer
A man of business will often deceive you without the slightest scruple, but he will absolutely refuse to commit a theft.
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 Arthur Schopenhauer
The first forty years of life give us the text; the next thirty supply the commentary on it.
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 Arthur Schopenhauer