Hurray

https://exchange.nus.edu.sg/exchange/g0800579/Inbox/FW:%20Newsletter%2042%20(1%20Oct,%202009).EML/Newsletter%2042%20(1%20Oct,%202009).pdf/C58EA28C-18C0-4a97-9AF2-036E93DDAFB3/Newsletter%2042%20(1%20Oct,%202009).pdf?attach=1

还是搞学术最实际，至少书本不会欺骗自己。

世间万物一切皆空，都是虚假的。人言可畏。