"Quote" = Use the writer's EXACT words in quotemarks ("")
After this, he
Usually, you should paraphrase. ALWAYS give a page number if you can
|Original||"He doesn't like cats, and although they are friendly he doesn't like dogs either"|
|Shorter||"He doesn't like cats ... he doesn't like dogs either"|
|Fix grammar||"He doesn't like cats ... [or] dogs"|
|Fix pronouns||"[Bob] doesn't like cats, ... [or] dogs"|
Don't change meanings though. For example "He doesn't like cats, ...he...like[s] dogs" is bad.
The best way to avoid having to paraphrase is to take notes in Japanese (only keywords in English) then write in English. If directly paraphrasing English, the easiest way is to delete all of the grammar of the sentence, then rearrange the keywords which are left, change some of the words, then finally put the pieces back together using your own grammar.
Try a thesaurus: (link)
Einstein (1931) said that imagination
He renounced his citizenship for political reasonsand emigrated to Americato take the position of Professor of Theoretical Physics at Princeton(Nobel Foundation, 1922).
For political reasons, he renounced his citizenshipand took the position of Theoretical Physics Professor at Princetonafter he emigrated to America(Nobel Foundation, 1922).
gave up his nationalityfor political motivesand moved to the USto occupy the post of Lecturer onTheoretical Physics in Princeton (Nobel Foundation, 1922).
Einstein hated politicians, so he settled in the Americas and became a Prince(Nobel Foundation, 1922).
On political grounds, Einstein gave up his citizenship, and having settled in the US became a Professor at Princeton University, teaching Theoretical Physics (Nobel Foundation, 1922).
Most of your paraphrases will probably be summaries.
Einstein went to work at Princeton, having first given up his citizenship (Nobel Foundation, 1922).