I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant, and with five I can make him wiggle his trunk.'

The freedom of thought is the most precious freedom.

A book is a heart that only beats in the chest of another.

The key to success is to focus on goals, not obstacles.

创新不仅仅是技术，而是改变人们的思维和生活方式。