创新不仅仅是创造新事物;它关乎改进已有的事物。
偏执者的心智如同眼睛的瞳孔;你照射的光越多,它收缩得越厉害。
It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.