Transcriber's Note: Variant spellings and proper nouns remain as printed.
Hyphenation, and capitalisation of proper nouns, has been made consistent.
All the common nouns are concepts just as all proper nouns are percepts.
In Dutch capitalize all nouns and all adjectives derived from proper nouns.
Variations in spelling of proper nouns are preserved as printed.
In side heads capitalize the first word and proper nouns only.
In German capitalize all nouns and all adjectives derived from the names of persons but not those derived from other proper nouns.
If there are some nouns that affect us, there are some proper nouns that equally do so.
All words derived from proper nouns should begin with a capital.
Here we have two proper nouns used as the subject, Marx and Engels.