THE SLOW ARROW OF BEAUTY. The noblest kind of beauty is that which does not transport us suddenly, which does not make stormy and intoxicating impressions such a kind easily arouses disgust but that which slowly filters into our minds.
Upon the solution of this problem, or upon sufficient proof of the impossibility of synthetical knowledge a priori, depends the existence or downfall of metaphysics.
Time is not an empirical concept. For neither co-existence nor succession would be perceived by us, if the representation of time did not exist as a foundation a priori.
It is clear, then, that wisdom is knowledge having to do with certain principles and causes. But now, since it is this knowledge that we are seeking, we must consider the following point: of what kind of principles and of what kind of causes is wisdom the knowledge?
Its matter was not new to me, but was presented in a new aspect. It shook me in my habit - the habit of nine-tenths of the world - of believing that all was right about me, because I was used to it.
Natural science physics contains in itself synthetical judgments a priori, as principles. ... Space then is a necessary representation a priori, which serves for the foundation of all external intuitions.