Philosophy stands in the same relation to the study of the actual world as masturbation to sexual love. The German Ideology (1845)
We see then, commodities are in love with money, but "the course of true love never did run smooth". Das Kapital (Buch I) (1867)
The object of art — like every other product — creates a public which is sensitive to art and enjoys beauty. Grundrisse (1857)
Beauty is the main positive form of the aesthetic assimilation of reality, in which aesthetic ideal finds it direct expression… Grundrisse (1857)