Thoughts
讀書，有時是需要借助外部的輔助的。
就我自己而言，讀書或多或少地會用到書中所提到的幾種輔助源，這其實是學習生涯中所積累下來的經驗罷了。但是本書在這里進行了相關的總結，詳細的論述以及給予必要的建議和注意事項，對于在閱讀上野蠻生長的我們，很有幫助。
Summary
4 types of extrinsic aids
1. relevant experiences
-common experiences
--relevant to fiction, philosophy books and history books
-special experiences
--relevant to scientific works and history books
2. other books
-read them according to time order
-fiction and plays can be read in isolation.
3. commentary and abstract
use them sparingly
2 reasons
-is not necessarily right
-is not necessarily complete
1 advice
-read them after getting through the book
4. reference books
4 kinds of knowledge
-have some idea of what you want to know
-know where to find out you want to know
-know how the particular work is organized
-know it is considered knowable by the author or complilers of the book
4.1. dictionary
find out how to spell and pronounce words
4 points about words:
1.words are physical things--writable words and speak-able sounds.
2.words are parts of speech.
3.words are signs.
4.words are conventional.
4.2. encyclopedia
look up dates and places and other simple facts
4 points about facts:
1.facts are propositions.
2.facts are true propositions.
3.facts are reflections of reality.
4.facts are to some extent conventianal.
Words and phrases
1. partake
This is because history partakes both of the fictional and the scientific.
2. exhaustive
3. at one's mercy
4. digest
5. creep in
