In a world of constant change, adaptability is the key to survival and growth.
在一个不断变化的世界中,适应力是生存和增长的关键。
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.