Classification
120 - Epistemology, causation & humankind
200 - Religion
100 - Philosophy & psychology
3
170 - Ethics
3
140 - Specific philosophical schools
2
900 - History & geography
2
000 - Computer science, information & general works
1
160 - Logic
1
320 - Political science
1
400 - Language
1
410 - Linguistics
1
800 - Literature & rhetoric
1