适来，夫子时也；适去，夫子顺也。安时而处顺，哀乐不能入也。
正该来时，先生（老子）应时来到这世间；正该去时，先生顺时离开这世间。安于时势，顺应自然规律，哀乐就不能进入心中。
"A book is a door, and every reader walks through it differently."
"We read to know we're not alone."
过去并非直线，而是错综复杂的网。
"I’m a firm believer in the theory that you only play your best when you’re having fun."
【释义】：礼节重在相互回应。送出礼遇而对方不回应，这是不合礼数的；接受了别人的礼遇却不回报，同样也是不符合礼的要求。
人生短暂如白马过隙，若不及时享受生活，年老时只能空自悲伤。
The future belongs to those who believe in the beauty of their dreams.