And during those early years, when he had time to brood over trifles and note imperceptible differences, he gradually sharpened his instinct, and made it into the delicate and redoubtable instrument it is.

在早年，当他有时间思考琐事并注意到细微的差异时，他的直觉逐渐变得敏锐，并使之成为精致而令人生畏的工具。