As the ancient philosopher Confucius once said, we have two lives and the second begins when we realize we only have one.

正如古代哲人孔子所说，你我皆可活两次，顿悟再无来之时，前尘逝，今。

Besides, many of the joys and sorrows of childhood have lost their poignancy; and many incidents of vital importance in my early education have been forgotten in the excitement of great discoveries.

此，童年时代的悲伤大都成为往事前尘，它们已然失去了当时的锋芒；在我接受早期教育过程中的那些重大事件，已经随着更加激动人心的伟大发现而被淡忘。