“No book is so bad that some good cannot be got from it.” Pliny the Elder, the Roman administrator and author, believed that time not spent learning was wasted. During meals, baths, and travels, a slave read aloud to him while another took dictation. He never read a book without making extracts, establishing a continuous knowledge pipeline that generated the ancient world’s most massive encyclopedia.
Historical & Academic Evidence
This content is based on Pliny the Younger, Letters (Epistulae III.5) / Reticular Activating System (RAS) and handwriting research.
1. Why Excerpting Beats Passive Reading
When you read passively, information slips out of working memory quickly. When you physically write down extracts, you trigger the Reticular Activating System (RAS) through kinesthetic movement. Hand-writing requires your brain to process, filter, and summarize, which acts as a powerful retrieval cue and moves information from temporary working memory into long-term memory structures.
2. 3-Step Practical Routine for Modern Professionals
Filter Critical Knowledge
While reading or learning, identify the top 5-10% of concepts that provide the highest value or spark a new perspective. Avoid the urge to write down everything you encounter.
Synthesize & Handwriting
Open an analog notebook and write the selected extract by hand. Put the concept in your own words if possible, as the physical connection between hand and brain cements the neural paths.
Map with Source Citation
Next to the written text, clearly write down the title, author, and page number in parentheses. This indexes the memory and lets you verify the facts effortlessly in the future.
3. Rules for Smart Note Excerpting
Do not copy whole paragraphs; this causes cognitive overload and becomes mindless transcription. Write only the core keywords or sentences that spark inspiration. Always paraphrase in your own words, and leave a clear reference/source tag next to the note so you can easily locate it later.
📌 Frequently Asked Questions (FAQ)
Is digital note-taking (tablets, typing) as effective? ▼
While digital pen-writing on tablets is reasonably close, keyboard typing is significantly less effective. Typing is too fast and automatic, requiring little cognitive processing. Handwriting's slower speed naturally forces the brain to synthesize information, which enhances retention.
How do I organize all these extracts so they don't get lost? ▼
We recommend Locke's commonplace book method: index your notes by category or keyword on the first few pages of your notebook. You can also digitize the handwritten notes once a month, archiving them with digital tags.
