From
谭嗣同 Tan Sitong 《
狱中题壁》 — written on the prison wall before his execution in 1898 for the Hundred Days' Reform:
我自横刀向天笑,
去留肝胆两昆仑 — 'I'll laugh to heaven with sword in hand; going or staying, both are Kunlun-sized courage.' 'Going' = Liang Qichao fleeing to Japan; 'staying' = Tan himself choosing to die.