最好的故事是那些在你翻完最后一页后仍久久留在你心中的故事。
"The best stories are the ones that stay with you long after you've turned the last page."
"A key insight in computational learning theory is that the complexity of a learning problem is determined by the complexity of the hypothesis space and the amount of data available."
I want to leave a legacy that goes beyond tennis.
Though debts are condemned in the financial world, the world of friendship and love may perversely depend on well-managed debts.