数学是一门活生生的学科，不断演变和发展。

The only real mistake is the one from which we learn nothing.

Make stuff that is good for people to have.

All things are numbers.

没有坏就没有好。所以我接受好坏，继续前进。

The imagination imitates. It is the critical spirit that creates.

释义：当对知识的理解达到真实、确切、坚定的程度时，这种理解就会体现为具体的行动；而在行动中能做到明白、警觉、精细、明察的地步，这也反映了对相关知识的掌握。