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

The personal example of a teacher is the most useful sunshine that nothing can replace for the soul of young people.

The universe is a book written in the language of mathematics, and physics is the key to deciphering its pages.

The past is a foreign country; they do things differently there.

下定决心果断行动，并承担后果；犹豫永远无法成就任何好事。