知无不言，言无不尽 zhī wú bù yán，yán wú bù jìn
Tell all that you know and tell it without reserve. 2. It seems a pity to give up now. 别的艺人是演出前尽量保持神秘，而他却似乎知无不言，言无不尽，完全忘记了做好保密措施。
Other artists before the show is as much as possible to keep secret,and he seems to know all words and attitude,completely forgotten to do a good job of the security measures. 学术上，一刃坚持有一说一，有二言二，知无不言，言无不尽，说错了，欢迎批评，可以是板砖。
Academically,Yiren persists in saying what he knows. Welcome comment if I say wrong. 如果有什么想跟大家共同探讨的话题或是对以后SHDUG聚会的想法，也请知无不言，言无不尽。
Feel free to come with your laptop and show us what you've been on recently,what you'd like us to demystify or your ideas about what we should do at our next SHDUG meet up.