Thus, because Christian morals leave animals out of consideration … therefore in philosophical morals they are of course at once outlawed; they are m… - Arthur Schopenhauer

And now that I have allowed myself the jest to which in this two-sided life hardly any page can be too serious to grant a place, I part with the book with deep seriousness, in the sure hope that sooner or later it will reach those to whom alone it can be addressed; and for the rest, patiently resigned that the same fate should, in full measure, befall it, that in all ages has, to some extent, befallen all knowledge, and especially the weightiest knowledge of the truth, to which only a brief triumph is allotted between the two long periods in which it is condemned as paradoxical or disparaged as trivial. The former fate is also wont to befall its author. But life is short, and truth works far and lives long: let us speak the truth.

University professors, restricted in this way, are quite happy about the matter, for their real concern is to earn with credit an honest livelihood for themselves and also for their wives and children and moreover to enjoy a certain prestige in the eyes of the public. On the other hand, the deeply stirred mind of the real philosopher, whose whole concern is to look for the key to our existence, as mysterious as it is precarious, is regarded by them as something mythological, if indeed the man so affected does not even appear to them to be obsessed by a monomania, should he ever be met with among them. For that a man could really be in dead earnest about philosophy does not as a rule occur to anyone, least of all to a lecturer thereon; just as the most sceptical Christian is usually the Pope. It has, therefore, been one of the rarest events for a genuine philosopher to be at the same time a lecturer in philosophy.

Every human perfection is linked to an error which it threatens to become.