Mathematics is a dialogue between the past and the present.

The true genius shudders at incompleteness - and usually prefers silence to saying something which is not everything it could be.

The role of the artist is to ask questions, not to answer them.

What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.

数据库技术的进化是一段旅程，而不是目的地。我们必须继续创新和适应。

领导者必须有勇气为长期利益做出艰难的决定，即使这些决定在短期内不受欢迎。

The great advantage of telling the truth is that you don't have to remember what you said.

卒：同“猝”，指突然事变。这两句大意是：心中没有预先考虑应对事变的方法，就不能应付突然变故。