乐观是正常的，但一些幸运的人比我们其他人更乐观。

Everything you want is on the other side of fear.

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.

技术将成为传统能源与更清洁未来之间的桥梁。

The human body is first and foremost a mirror to the soul and the greatest achievement in art is to make that mirror reflect the truth.