Every tree tells a story; our job is to make sure it's a story of renewal, not destruction.
Cheerfulness is the best promoter of health.
If you want to fly, you have to give up the things that weigh you down.
模型的唯一真正检验是其预测未来的能力,而未来总是不确定的。
The whole honours and pride in the world, all come from the mother.