Here are 12 classic sentences about love in English:

1、"Love is a gift that can't be bought or sold."

2、"True love never grows old."

3、"Love is patient and kind; it does not envy or boast."

4、"The best and most natural condition of human life is to be in love."

5、"Love is a powerful force that can transform the world."

6、"To love is to be vulnerable, but it's also the greatest strength we have."

7、"Love is a flower that needs to be watered with patience and care."

8、"Love is a journey of discovery, not a destination."

9、"The best way to love is to let your heart grow and learn to see things from someone else's perspective."

10、"True love doesn't require you to change yourself, but rather complements who you are."

11、"Love makes the world go round, and it's the only thing that really matters."

12、"In the end, the best thing you can do for your partner is to love them as they are."

Each of these sentences captures the essence of love in its own way, offering wisdom and insights that are worth cherishing and remembering.