Margin Evidence https://s-ehrlich.com/ Notes that remember where the sentence came from. en How to Keep a Source Log for Personal Researchhttps://s-ehrlich.com/keep-source-log-personal-research/https://s-ehrlich.com/keep-source-log-personal-research/Keep a source log by creating one retrievable record per source when you first consult it. Observation vs Inference vs Assumptionhttps://s-ehrlich.com/observation-vs-inference-vs-assumption/https://s-ehrlich.com/observation-vs-inference-vs-assumption/An observation records something noticed or measured under stated conditions.