数学思想的真正考验是它能否激发更多的问题。
The true test of a mathematical idea is its ability to inspire further questions.
We must always question our assumptions and be willing to revise our understanding in light of new evidence.
生活就是当你忙于制定其他计划时发生的事情。
The changes in our life must come from the impossibility to live otherwise than according to the demands of our conscience.