我们不要害怕犯错，因为只有通过犯错我们才能学习和进步。
We must not be afraid to be wrong, for only by being wrong can we learn and progress.
经济学是对人类日常生活事务的研究。
阳中的阴精本质不刚强，单独修炼一种物质会转为虚弱。
The computing scientist's main challenge is not to get confused by the complexities of his own making.