DiscoverErvin's ConceptJan 26. Lazy is a part of study, remove it or enjoy it. It is your choice.
Jan 26. Lazy is a part of study, remove it or enjoy it. It is your choice.

Jan 26. Lazy is a part of study, remove it or enjoy it. It is your choice.

Update: 2020-01-26
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How to study based on Ervin's Concept.
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Jan 26. Lazy is a part of study, remove it or enjoy it. It is your choice.

Jan 26. Lazy is a part of study, remove it or enjoy it. It is your choice.

Ervin & Skywalker