Kusaka Genzui
(1840 - 1863) 

His family and early life| The Sonjuku years (1856-1859) |
Politics and Infighting (1860-1863) | Fictional portrayals

  

To lament the teacher's sad life is profitless.
The important thing is not to let the teacher's intentions falter.

- Kusaka Genzui to a fellow student of the Sonjuku after the death of Yoshida Shoin

The majority of this information is taken from the following work:
Thomas M. Huber. The Revolutionary Origins of Modern Japan -- Stanford Unviersity Press, 1981