Resilience is not a trait that people either have or do not have. It involves behaviors, thoughts and actions that can be learned and developed in anyone.

To look up at the heights of heaven and to admire the stars.

生命太短暂，不要浪费时间恨任何人。

穷人的真正悲剧在于他们除了等待富人给予他们一些东西外，什么也做不了。

数学是一门活生生的学科，不断演变和发展。