科学的美妙之处在于它让我们能够探索未知并揭开生命的奥秘。
你给予的越多,你得到的就越多。
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."
A Jewish man with parents alive is a fifteen-year-old boy, and will remain a fifteen-year-old boy until they die!