Innovation is to imitate first.

The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

Success is measured not just by profit, but by positive impact.

The arithmetic of L-functions is a key to unlocking the secrets of the universe.

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。