Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.
学习某样东西的最好方法就是把它教给别人。
The brain is not a computer in the traditional sense, but it does compute.
创新不仅仅是创造新产品，更是重新思考整个流程，以别人未曾想象的方式提供价值。