人生冇绝对嘅答案，只有不断嘅尝试。

估计问题的性质与检验统计假设的问题不同。

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.

The goal is not to be right all the time, but to be right more often than wrong.

One tells as few lies as possible only by telling as few lies as possible, and not by having the least possible opportunity to do so.