每个句子都是一次旅程，每个词都是一步。
Every sentence is a journey, and every word is a step.
每个数学问题都有解决方案，但并非每个解决方案都显而易见。
No matter how good you get you can always get better, and that's the exciting part.
The worst thing that can happen to a human being is to lose hope.
对人说话要留有余地，不要一吐为快，不能把心全部交给别人。
I'm not a saint, I'm a sinner.