I like these lines from the show last night:
Ruolin: "一个人年纪再大, 都需要一个可以依靠, 相依为命的人。" (No matter how old you are, you still need someone for emotional support.)
Liqiao: "这个人不容易找，找得到未必适合，适合， 也未必能在一起。" (Finding that person is hard. The person you've found may not be the right one or the right person may not grow old with you)
Ruolin: "所以说， 一旦找到了， 就要紧紧牵着对方的手，不要轻易放开。" (If you ever find the right person, hold on to that person's hand and never let go)
Ruolin was telling her brother Liqiao not to give up on the one he loved.